Overview
- Therapists say a sudden uneasy gut feeling is the most common early sign that something is wrong in a relationship and should prompt cautious investigation rather than immediate accusation.
- Individual behaviors such as mood swings, secrecy about a phone, changes in appearance, shifting routines, or altered sexual patterns are not definitive alone but gain meaning when several appear together and depart from a couple’s normal patterns.
- A University of Western Australia photo study found people more often labeled men with pronounced masculine facial features as likely to cheat, yet researchers and clinicians stress this is a suggestive correlation limited by small controlled stimuli and self‑report bias.
- Clinicians warn that covert checks of a partner’s phone or accounts are unreliable and often damage trust, so they recommend planning a calm, specific conversation about concrete worries and desired changes.
- Representative German surveys show roughly one in five people report having cheated and newer data suggest women’s rates are closing the gap with men, a trend experts link to changing social norms and different patterns of guilt and disclosure.