Exactly that really. DP had an emotional affair (non sexual, but they did kiss) with a slightly younger OW. All has been forgiven, but I have just found out he wasn't exactly being discreet and some of his close friends are aware after he confided in them. The affair happened a while ago, but I am annoyed he told people and further annoyed it still seems to be a topic of conversation amongst them 1 year later.
Only saving grace is that when OW is mentioned amongst his friends it is in a negative light.
AIBU to be peeved?