How to tell if your partner is cheating

If your partner suddenly starts deleting texts and clearing their browser history on a daily basis, that’s not a good sign. If your partner never relinquishes possession of their phone, even taking it into the bathroom when they shower, that’s not a good sign. If you ask to review your partner’s phone, and they say no, that’s also a problem. Honestly, what could possibly be there — other than information about your surprise birthday — that they would want to keep secret?