"Friends" don't understand how I feel.

A group of friends I had since highschool until recently (M 34) was very close to me and some still are. They used to invite me to all meetings, but last December one time they didn't for the first time. It was supposed to be a girls thing, but my friends(theirs husbands) were present as well and that's what made me angry in the first place. Then, I decided to talk to one of the girls I thought to be the host of the supposed party, she admited and said as an adult I shouldn't care about these things. That alone made me furious, as I replied we as adults should be empathetic about others which she ignored. Two of the 3 guys I complained tried to make sense of things but one got pissed because I didn't treat his woman the way the thought it was ok. Almost 3 months after I think about making new friends. What do you guys think?