I (23f) have a girlfriend (20f) of 1 1/2 years. when i met her, she had a group of volleyball friends that would hangout every week at least. when i met her she had broken things of with a guy she was seeing that simply never went anywhere. but the first times we started talking to each other she was still trying to keep things friendly with him but he still had hopes to get her back. i didnt know that at the time. but when the went their separate ways they never talked that was maybe 1-2 month where me and her were getting serious. on october she had a halloween party with that group (forgot to mention the “ex guy” was part of that friend group), we werent having a good time because at that time she wanted to call things off and we stopped talking for 3-4 days. we started talking again and we tried by december we talked everyday. on january we had our first fight, in mid january is when a was having a birthday, but going a little back in the halloween party she ended up makeout with her exguys best friend and the started talking everday and i mean everyday for hours. so when she posted a story on her insta hours later she uploaded another story also sending birthday wish to that best friend. (for context im going to give initial to each person so you can tell whos who) a is my girlfriend, g is the best friend and i is her exguy. so by january through february or march we started having a little bit of a problem, she used to cover her phone or turn it away from me so i could see her messages (which i never cared until she started doing it) so i talked to her and ask her why she did it, she always said because she didnt want to get distracted. that kind of an example of things she used to do that started bugging me. we would fight every time she mentioned g at this point g became way more problematic than i which is crazy, but g and a had a habit of texting each other everything, everythingg and would text until she fell asleep or him and would send each other goodnight texts. friendly but weird. i got upset with her because we would have a moment for us too and she would look at her phone the second she saw a message from him. i ended confronting her and told her that a didnt feel comfortable of her talking to g and i about averything for a while the stopped until a’s birthday they had a party with the volleyball gang and ofcourse g and i are their, a and g started texting everyday again and also i had gotten mad at him at the party because he would stop touching (hugging) my girlfriend drunk and coming up too me drunk either. when the next day i decided to break up with her and we talked about everything and i decided to give her 1 more shot (in the summer it went the same), they didnt talk but my girlfriend was upset for ghosting him so in the summer they all had a party and a, g, p (a dude who is 30 and hangs out with 17-20 year olds) and c (a’s volleyball bestie), so they were the last to leave the party, i ofcourse was suffering alone and was checking up on her, she left at 3 am but after she left she ask if she can sleep over with them 3 i said no, she left and later told me she told them why she ghosted g, i dont know what she really said shes only told me she explained the situation and said she didn’t want to talk to him anymore, well anyways months go by their were other 1-2 instances were they talked and stuff, and a lot of bad discussion happened with us but after a couple of months past and they stop completely they dont even say hi, well its that time of the year were its her birthday and another celebration with thst group will happen.

(in octuber of last yera they kiss, their texts were weird talking about nothing but everything and she would give him nicknames with his name, he always wants to hug or touch her in some way (not sexual), she made him a cake for his birthday and on my birthday she didn’t give me anything and yes we were going out, she denied ever kissing him until i threaten to break up 4 months later, she would say she stopped talking to g but she didnt stop until i would catch her many times, we fought and she decided to chose our relationship and to work on it 6-7 months later)

AITAH for feeling nervous that he is going to be their and being afraid of her ignoring me (their playing volleyball for 4 hours then having a party for 4-5 hours at least) and not having trust in her? also because im socially anxious being around them. does she have the right to get upset with me for feeling this way?