Am I wrong?

My girlfriend and I have been having an issues thats leading to be on the verge of breaking up very often. to make a long story short she feels like she should be able to go out with her friends and all that and she shouldn’t have to invite me. which i 100% agree. why do we keep arguing you ask? because she’s going out to festivals with all my fav artist and traveling to all these fun places after she’s been telling me for months we’re gonna go do all this fun stuff together. but doesn’t want to invite me bc she don’t have the money to pay for me which i told her is not her responsibility. and tells me she can’t make these plans for us bc she has to save up money but can save up money for herself and go? likeee she never had to pay for me but doesn’t want me to do anything with her unless she’s paying or it’s bc she’s seeing her friends but then that raises the question of why can’t i meet and hang with your friends also every now & then. just sketchy. and honestly i just feel really left out. and feel like she just wants her own life. i’ve always been the type of person to do everything with the one i claim to love especially exciting things. i like to experience life with them. that’s the reason i’m with them in the first place right? idk. she makes me feel stupid for the way i feel and i honestly don’t know what to do anymore bc i don’t feel i’m wrong but she does and she doesn’t feel she’s wrong but i do. PLEASEEEE someone help me.