Sage in betrayal trauma therapist's Cambridge, MA office


Rapid trauma relief in 1-5 sessions using Accelerated Resolution Therapy

Online Betrayal Trauma Therapy in Cambridge

Online therapy across Massachusetts for romantic, family, and business betrayal.

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Expert Trauma Therapy For the Betrayals that Change Everything

From the outside, you’ve been very successful. The advanced degree, the impressive career, the beautiful home near Porter Square. Despite this, you’ve experienced a life-altering betrayal.

Now you’re checking your spouse’s phone while they’re in the shower. Your Harvard MBA or biotech IPO didn’t protect you from this. If anything, the pressure-cooker environment of Cambridge, the long hours, the competition, and the “work spouse” culture may have created the perfect conditions for it.

Maybe you discovered the affair through a receipt from the Charles Hotel. Or caught them in a lie about working late in Kendall. Perhaps your business partner has been meeting with investors behind your back at that Inman Square coffee shop you both used to strategize in.

Your analytical mind keeps searching for patterns you missed. But betrayal trauma doesn’t respond to logic. The frameworks that serve you so well in the lab, the boardroom, and the classroom can’t touch this wound.

Serving Cambridge and surrounding areas, I specialize in Accelerated Resolution Therapy (ART), a proven method that works as efficiently as you do. Resolution in 1-5 sessions, not months of processing. Learn more about betrayal trauma treatment here.


Types of betrayal I see in Cambridge:

  • Affairs during intense career phases, like residencies, PhD programs, or startup launches

  • High-stakes co-founder and business partnership betrayals

  • Family betrayals emerging after financial success

  • “Work spouse” emotional affairs that crossed the line

  • Infidelity in dual-career power couples

  • Discovery of financial deception or hidden debts

  • Friendship betrayals within tight professional circles


You’re experiencing symptoms of betrayal trauma (also called post-infidelity stress disorder) like…

  • Intrusive thoughts — Unwanted thoughts of the betrayal interrupting your work, your meetings, and your attempts to focus on anything else

  • Hypervigilance — Constantly checking their LinkedIn, Slack, and email. Monitoring credit cards. Screenshot everything “just in case.” Your investigative skills turned against your own life

  • Sleep disturbances — Lying awake analyzing every late night at the lab, every conference they attended, every “networking dinner” you didn't question

  • Emotional numbness — Going through the motions at work, feeling disconnected from achievements that once mattered, unable to feel excitement about the next milestone

  • Anxiety and panic attacks — Heart racing when their phone buzzes, panic at company events where you have to pretend everything’s fine, physical symptoms before heading to Harvard Square, where you might see them

  • Trust issues and relationship avoidance — Suspicious of every new connection, withdrawing from professional networks, unable to collaborate like you used to

  • Physical symptoms — Headaches, stomach issues, that constant tension between your shoulders that massage doesn’t fix

How Betrayal Trauma Changes After ART


Through our work together, you’ll stop surviving and start living. Not managing trauma, not coping with triggers, not getting through each day. Actually living with spontaneity, joy, and the freedom to choose your life instead of trauma choosing it for you.


After 1-5 ART sessions, many people who have experienced betrayal trauma describe their healing journey like this


  • Sleep returns — You sleep through the night without grinding your teeth. The nightmares stop. You don’t even think about their phone on the nightstand.

  • Triggers quite literally stop triggering you — The facts of what happened remain, but they lose their emotional charge.

  • The detective work disappears — You forget their email password because you haven’t used it in months. Not because you’re resisting the urge; the urge is simply gone.

  • Your body stays calm — Team meetings are just meetings. Conferences are just conferences. Your body doesn’t gear up for a threat because it doesn’t detect any.

  • Intrusive images stop intruding — You realize you haven’t had mental movies in weeks. Not because you’re trying not to; they just stopped showing up.

  • Places are just places again — That Central Square restaurant, the running path along the Charles, even Memorial Drive, they return to being locations, not crime scenes.

  • Your gut works normally — Your instincts react to actual present-moment information, not past trauma. No second-guessing needed.

  • You naturally focus forward — Back to your research, your company, your next goal. Your brain automatically orients itself toward the future because the past is truly past.

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Accelerated Resolution Therapy: 1-5 Sessions for Betrayal Trauma Relief…

What Makes ART Different From Other Approaches?

While traditional therapy focuses on talking through the betrayal and understanding it, ART targets the actual images, emotions, and sensations stored in your brain that trigger you. Using guided eye movements (similar to what your body naturally does during sleep), ART works directly to “reprogram” how distressing memories are stored in your brain so that they no longer trigger automatic physical and emotional reactions.

Think of it like reorganizing a filing system in your brain. Right now, betrayal-related memories are filed in your “immediate threat” folder, causing your nervous system to react as if danger is present every time they’re accessed.

ART helps move these memories into a different filing system: “past events that no longer require emergency response.” The facts remain the same, but your brain’s automatic reaction changes completely.

And the best news is that this neurological change is automatic. It's not something you have to consciously choose or work at maintaining. In other words, no “skills” or “tools” are needed.


But Does It Really Work for Betrayal? The Evidence Resoundingly Says Yes.


While the research on ART for betrayal trauma is still emerging, the results from broader trauma studies are directly applicable and profoundly promising.

In other words, your brain's response to betrayal is a trauma response, and ART is designed to resolve it fast.

Here’s what the science tells us:

Rapid results: Most clients see significant relief in 1-5 sessions, not months or years. This isn't just a claim; it’s what the data shows. The efficiency of ART means you can stop spending your life managing symptoms and start living it again.

Exceptional completion rates: 94% of people who start ART complete it. Compare this to ~60% for traditional talk therapy. People stick with ART because they can feel it working quickly, which is crucial when you’re exhausted and can’t imagine another long-term therapy commitment.

Profound neurological change: Studies on ART consistently show effect sizes (a measure of treatment strength) that are 2-4 times stronger than traditional therapy. This isn't just “feeling a little better”; it’s tangible, measurable, lasting change in how your brain and body respond to triggers.

It works for the tough cases: ART showed a 61% major improvement rate in combat veterans with PTSD, a population that often struggles with other therapies. This demonstrates its power to handle severe, stubborn trauma responses, like those often seen after betrayal.

The research confirms what we see in practice: ART effectively calms the overactive threat response that betrayal trauma creates, allowing your nervous system to finally return to a state of safety.


A 90-minute Accelerated Resolution Therapy session is $500.

ART sessions are $500 per session. Each session runs as long as needed to complete the protocol, typically 60-90 minutes. The average length of treatment is 3-4 sessions for most issues.

Total investment for most clients: $1,500-$2,000.

ART is an investment in your freedom and well-being.


Let’s get started

Cambridge Area Coverage


I provide online betrayal trauma therapy to residents throughout Cambridge and the surrounding areas:

Harvard Square • Kendall Square • Porter Square • Central Square • Inman Square • North Cambridge • West Cambridge • East Cambridge • MIT • Cambridgeport • Somerville • Arlington • Belmont • Watertown

Also offering betrayal trauma therapy in the Boston area.

FAQs

Frequently asked questions

  • I specialize in all types of betrayal: relationship betrayal (infidelity, affairs, emotional affairs, pornography addiction, financial deception), family betrayals (parent affairs that destroyed your family, sibling betrayals, inheritance disputes, family business conflicts, discovering family secrets), friendship betrayals (best friend betrayals, social group exclusions, confidences violated), and professional betrayals (business partnership deception, workplace affairs that affected you, mentor violations of trust).

    The common thread is that someone you trusted fundamentally violated that trust, leaving you with symptoms of betrayal trauma. Whether it was a spouse, parent, sibling, best friend, or business partner, your nervous system responds the same way, and ART addresses that trauma response directly.

  • No. You don’t have to share any of the specifics. ART works with the images and sensations stored in your nervous system, not the verbal story. You can keep the details private and still process the trauma completely. Many clients find this privacy one of the most relieving aspects of ART.

    This is especially helpful for people who are processing a business betrayal or work trauma and they have signed an NDA.

  • That’s completely normal. ART helps your nervous system calm down so that you can think clearly about those types of decisions. Right now, trauma is making every decision feel urgent and next to impossible.

    After ART, you’ll still have the same choices to make, but you’ll be making them from a regulated place instead of from panic, rage, or numbness.

    Many clients say they couldn’t even think about the relationship question clearly until their nervous system settled.

  • Based on ART research for trauma generally, most issues resolve in 1-5 sessions, with a 94% treatment completion rate.

    While there isn’t specific published research on betrayal trauma and ART yet, complex trauma typically takes 4-5 sessions, while single-incident traumas often need just 1-2.

    We'll start with one session and assess from there. You’ll know after the first session if ART is working for you because most people feel noticeably different before they leave.



About Allyson Clemmons, LICSW

My specialization in betrayal trauma emerged from years of couples therapy. While couples work was essential for the relationship, I noticed betrayed partners also needed specialized individual therapy that wasn’t available. They would only find generic trauma treatment that kept them talking in circles for months, while their nervous systems remained hijacked by the betrayal.

I noticed that betrayal creates a specific type of trauma that requires targeted treatment. Whether it’s infidelity, family betrayal, or professional betrayal, the neurological impact is profound, and it doesn’t resolve through insight or understanding alone.

Now I exclusively use Accelerated Resolution Therapy to help people move from obsessive investigating and constant triggering to genuine peace in just 1-5 sessions. You don’t need to manage betrayal trauma indefinitely. You can actually resolve it.

Independently licensed in Massachusetts, LICSW #126480
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Contact Me or Self-Schedule Your ART Session From Cambridge or Anywhere in Massachusetts

If you already know you would like to get scheduled, please do so using the button below. No need to contact me first unless you want to.

The link will take you to my secure, HIPAA-compliant scheduling tool where you can choose a day and time and pay for your session to reserve it. Within 24 hours, you’ll receive an email invitation to complete your new client forms. Then we’ll meet on your scheduled day!


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heal the root cause in 1-5 sessions

heal the root cause in 1-5 sessions —