In regards to why the friends may have invited you, maybe they thought you were fun. Most of the guys I've dated have friends who invited me to things post break up. Sometimes I went. And sometimes I didn't. However, when I'm not with someone, I go under the premise we are done. I'm done. However, I wish them well and that is why I have no problem going. Same with why I went to dinner with X Mr.GB. No ulterior motives. However, I get the impression that you may be *waiting* for this guy you dated to give you some kind of response (and I don't think he is but what do I know?) so I recommend you not go. I think you will be reading into things and trying to figure out what's going on with the guy when I think it's rather clear. I don't think you are detached enough.
Sorry about the jewelry. I'm not sure if it had sentimental value but hopefully you get it back.
Hang in there and have some fun!
3 kids BD 12/15/13 (IDKIILY. ) Rope dropped Cirque du Soleil style D final 9-9-14 "Some people are born on 3rd base and go through life thinking they hit a triple." Barry Switzer