【轻阅读，看世界】Need some opinions..

So last night I happened to walk up behind my wife on the couch as she was scrolling through messenger and saw a message from a guy that was trying to get with my wife before we got together.. I told this guy 5 years ago not to message her or call her again but he did anyway and said how are you doing and she responded saying she was good too but that’s all I could see and there’s no telling if she cleared the messages before, but the point is, I didn’t like this guy 5 years ago and it came to a point where threats were being made if he didn’t stop.. but now she thinks it’s okay to reply to him?? Literally the only person I would prefer her not to speak with and she replied to him.. I felt disrespected and a little angry and confronted her about it and she was smiling the whole time like it was funny or something.. am I wrong for getting upset and feeling disrespected?