So trying to keep a long story short. My MOH and I have been friends all throughout high school. I moved away for college, graduated and have not lived near her since. We've kept pretty good contact and seen each other a handful of times since then (very briefly) but I always considered her my good friend. I really thought she was a good friend because she was an amazing shoulder to cry on while I was figuring life out. Well I have noticed that she doesn't seem as good at being happy for me. She barely spoke during this whole past weekend (bridal and bachelorette party) and when she was she was complaining. My mom threw my bridal shower, she "threw" my bacherlorette which involved some shots paid for. I even ended up paying for everyone's ubers and my own meal at the restaurant the party started out and everything. Which is fine, but it wasn't anything more than anyone else did that night. She also caused drama with my friends, I have actual pictures of her at my bridal shower pouting in the distance, kid you not. She added stress to my otherwise very happy weekend. So anyway, my girlfriend is not engaged, forced her BF into buying her an engagement ring and is essentially waiting for it to happen (and complaining every day that it's not, kid you not). And after my bridal shower I was like man I should save all of these leftover bridal shower décor if you want because we don't share any of the same guests and they're so stunning! And then I was like or I don't know how that would work since you don't throw your own parties. And she replies "what do you mean? you're going to be my matron of honor, you have to throw it."
So I kind of froze and was like, um excuse me? I have to throw it? She also told me there was no way she would be having her bachelorette in our hometown (which I would already have to travel for to see her and then to travel additional to go to her bachelorette). Ultimately, I am fine with being her Matron of Honor. Although now I feel the friendship burning out, it's feeling forced, I'd only be doing it out of obligation since she was my MOH. (It's really sad because over text it seemed more organic but us maturing differently is more apparent in person).
So what do I do now? Would I be horrible for not being her Matron of Honor after she was my MOH? Is there a way of getting out of throwing these parties for her since she apparently thinks I'm obligated in doing so? 
I want to be kind to her but I really just do not want to. And honestly if someone felt that way towards me I wouldn't want them doing it.
Any advice?
