SUBREDDIT: r/relationships
TITLE: Me [17 M] with my girlfriend [17 F] of 9 months, have had a breakup involving my bestfriend and struggling to make decisions.
POST: Hey, earlier today my girlfriend noticed a message from my bestfriend calling her a whore due to previous moments leading to my bestfriend thinking like that of her. Due to this my girlfriend called her up and had a big argument which lead to me and her breaking up. Problem is i have no idea what to do, i care for the girl a lot though ive already considered ending it due to my personal issues, and getting back together also leads to my bestfriend not wanting to talk to me, as of this im struggling to decide what i want and what i should do.
TL;DR: 
girlfriend and i broke up due to issues with my bestfriend, bestfriend wont talk to me if we get back together.