i can't make up my mind

First of all, just ask her what she wants. If she wants you to wait until she gets things worked out with whatever she's dealing with right now, she shouldn't be flirting with other people, mainly your friend. If she doesn't want to be with you any more, just do your best to move on. I've gone through a similar situation and trust me, i know i sucks. Just be straight forward with her when you talk to her about it, and take things from there. Good luck!!

hey .. what ur ex is doing is messed up .. she probally likes u and ur friend ... but shes probally jealous thinking ull find someone else .. and then so she acts like she still loves u & she probally also likes ur friend .. but u can't let hurt keep playing u and hurting u like this .. i know u say u love her & shes ur eveything but it was only 3 months .. like its hard ... but if she loves u to she wudnt go for u friend .. and she wudnt be flirting a trying to have u wait for her shes probally doing that bc shes trying to get with ur friend .. so in the long run ull find someone better then her .. and ull b happier ..

Hope everything works

I know its hard to move on, but now, shes hurting you. Its an abusive relationship, and you gotta stop it. Orelse youll just end up wounded and scared. Hope things turn better