Hi all, thanks for reading. I’m new here after searching for anonymous advice as can’t talk irl.
It has become apparent to me that a very old friend (m) is using a lot of his time talking to another mutual old friend (f). We have been good friends for a long time, never been interested in more certainly from my point of view (I always liked his best friend!). Now I know that he sends and receives exposing pictures and engages in explicit chat with her. They are in their mid 50s, him supposedly happily married, kids etc and her divorced for nearly 20 years with adult kids. Why would he do that? Is it cheating? Would it be unkind to tell his wife who I’ve met a few times but don’t know, not even sure if she’s remember me. I don’t think this woman is the only one either. I’ve got myself worked up about this and could do with some help from out there. What should I do?