first of all..is ur gf sure that's how a "best friend" acts?
cuz i never have best friends let along friends like that..

maybe ur gf needs to be more rational abt what actually is a "friend"?
2ndly wut u should do is just ignore him like he ignores u
u are dating his friend not him..so wut if he's her best friend :shrug:
he doesnt like u, but that hasnt stopper her (ur gf) from dating u..
screw that guy, who cares wut he thinks~