I looked at my wife’s insta DMs the other day while she was in the shower. We have been together 16 years now, but we are currently having a break and living separately. I seen on her DM that she was talking to an old friend of mine whom she previously stated she had a crush on years ago. I asked her today if she had heard from him lately and she said no. I couldnt say i knew that she was lying as it would highlight the thing i done that was also wrong of me to do. (Looking at her phone) i dont know why she would lie and it upsets me. The messages did not contain sexual content, but some banter between them. She knows that he would go with her in a heart beat if she ever asked him as friends of hers told her that he always wanted to sleep with her. I dont know if i should be worried. Is there a chance she is cheating?