Most Helpful Guy
I don't really think you should dislike someone because they did something to your friend or just because your friend says u shouldn't that's dumb. What's stopping your friend from being friends with them now you look like an asshole.
I think the only way this would be ok is if you knew her and she dated you guy friend and she did him very dirty that you didn't like how she treated your friend
Most Helpful Girl
What? Why would you be forced to hate someone? Don't be like the people in those high school cliques who bully someone just because the "leader" did.