Why sex becomes so complicated after an affair
Discovering a partner's affair can upend a person's sense of the relationship, and often of themselves. The American Psychological Association's Monitor on Psychology, in an article for psychologists about treating infidelity, notes that betrayal can bring up anger, insecurity, shame, guilt, jealousy and sadness, for both the person who was betrayed and the person who strayed. It also notes research linking being cheated on with depressive symptoms and lower self-esteem.
Sex sits right at the center of that pain. For the hurt partner, physical closeness may bring intrusive images, comparisons, or the fear of being fooled again. For the partner who had the affair, guilt can make intimacy feel undeserved or awkward. Some couples stop touching entirely. Others go through a burst of intense sexual contact soon after the discovery. Both reactions are common, and neither tells you how the relationship will turn out.

Trust usually comes first
There is no single correct sequence, but many people find it hard to feel physically safe with a partner before some emotional safety has returned. The Monitor describes one widely cited approach for working with couples after an affair, developed by psychologists Kristina Coop Gordon, Donald Baucom and Douglas Snyder, which moves through three broad stages:
- Containing the damage, which includes making sure the relationship with the affair partner has ended.
- Understanding what led to the affair.
- Deciding together what the future of the relationship will look like, including whether to stay together at all.
That framework is written for therapists, but the order is a useful reminder for couples. Expecting sexual intimacy to feel normal while the affair is ongoing, or before either person understands what happened, often adds strain.
No one owes sex to repair the relationship
After an affair, sex can carry heavy and conflicting meanings. A hurt partner may feel pressure to have sex to win the relationship back or to prove they are still desirable. A partner who strayed may feel they must agree to anything to show remorse. Either can drift into sex that is not truly wanted.
The Office on Women's Health states that no person is ever required to have sex with someone else, and describes sexual coercion as including pressure that makes someone feel guilty or obligated. The National Domestic Violence Hotline describes healthy consent in a committed relationship as ongoing and mutual: agreeing once does not mean agreeing every time after, and comfort can change from day to day. That applies on both sides of an affair.

Approaching physical closeness again
When both partners want to try, many couples find it easier to start small and let closeness return in steps. These are general ideas, not a prescription:
- Begin with non-sexual affection, such as sitting close, holding hands or a hug, and check in about how it feels.
- Agree that either partner can pause or stop at any time, and that stopping is not a setback.
- Expect triggers. A place, a phrase or a time of day may bring the affair rushing back. Naming it ("I need a minute") can be better than pushing through.
- Talk afterward. What felt good, what felt hard, what each of you needs next time.
- Consider new routines or settings, if old ones feel tied to the betrayal.
If the affair raised questions about your physical health, a physician can advise you privately. Non-Sexual Touch and Affection describes ways to rebuild everyday warmth.
If you are the partner who had the affair, patience is part of repair. Pressing for sex, or treating a hug as a sign that things are back to normal, can feel to the hurt partner like a request to move on before they are ready. Letting your partner set the pace, and saying plainly that you will wait, often does more to rebuild trust than any single gesture.
Honesty and questions
Hurt partners often have many questions, and the partner who had the affair may want to put the subject away as quickly as possible. Couples tend to do better when honest answers are available without turning every conversation into an interrogation. Some details help a hurt partner make sense of what happened; others can create images that are hard to shake. A therapist can help a couple think through which conversations are useful and when.
The Monitor also describes the view of psychologist Janis Spring that a hurt partner may be able to heal without forgiving, and that genuine forgiveness, if it comes, has to be earned. Rebuilding intimacy does not require pretending to have forgiven before you have.
Staying, leaving, or not yet knowing
Not every couple decides to stay together, and the Monitor notes there is no universal answer to whether partners should stay or go. Some couples repair the rupture; others decide to part. It is also common not to know for a long time. Working on intimacy and deciding about the future can happen side by side.
Where therapy fits
The ISSM notes that couples sometimes work in therapy on relationship problems that lead to sexual difficulties, including infidelity and lack of trust. Dr. Lehmann, a licensed clinical psychologist in Franklin, Michigan, offers couples therapy and therapy for intimacy and sexual concerns. Ask Dr. Lehmann when you call which format fits your situation, and about her approach to working with couples after an affair.
