Should i talk to my friend about her getting on my nerves?

Well my friend kinda of wanted to go to prom with her crush but her crush asked a different girl and she won't shut up about it, and she is always trying to be the center of attention and she always talks about herself ie: boy issues, family issues, friend issues and exciting news. Well i got asked to prom (NOT by her crush but by a really nice guy) and i said yes even though i wasn't wanting to go to prom (after a while and talking to some of my other friends i got more excited about going), and so she got very mad and jealous at me but yet she still talks to me and calls me her bff. She yelled at me for talking about prom 24/7 when it wasn't even 24 hours after he asked me and we did talk about other things other than prom and i didn't even talk about prom for an hour. She says im rubbing it in that she didn't get asked by the one she wanted to but i was only asking for advice since she is a really good friend. She is giving me really bad advice now, and i try to avoid her or talk to my other friends since she is bringing me down and getting me unhappy. I don't want to lose her as a friend since she is a really good friend other than this. Well i hate when she is always talking about herself and when i have exciting news she changes the subject back to being about her and make me less excited about my news because of her griping about my news, and yelling at me for it. What do i do?