Should I hate her too?

you can't hate someone unless the person does something to you or gives you bad affect. Just because your girlfriend doesn't get along with her, you can have your own opinion. If your friend doesn't respect your opinion then she's not true friend. And why hate someone anyways? There are really moments in life when people have a big reasons to hate others. Just stay peaceful bro ;)

Definitely not! You're Girlfriend may not like it, but I would def not hate someone because someone else did. I hate when people do that. it's really low for someone to do. You say you have no problem with her, so why would you hate her, don't be a dick!

Your girlfriend has a lot of growing up to do. That’s a very ugly trait to have. Make you dislike someone just because she does? Your girlfriend is most likely jealous of the other girl so just keep that in mind. Ha I know…girls are confusing. I am one.

No. You have to give the girl a chance. Don't hate her just because someone else does. Get to know her first THEN form your OWN opinion.

no you shouldn't hate her too. I know there's that silent code of loyalty when you're friends with someone, but just she doesn't like a person, expecting you to feel the same hatred towards that someone doesn't make it right. I know you want to be a loyal friend but at the same time, you shouldn't do things that aren't right for the sake of keeping that loyalty.

if you're having problems handling this, then you should talk to your girlfriend about it. ask her why she hates this girl and decide for yourself if that's a valid enough reason to hate this girl. I know you feel like you're walking the middle line and think that you should take sides, but if they have beef with each other they should be mature about it and just keep it between themselves instead of dragging other people into their mess. that kind of behavior is rather toxic.

if anything, I'd try to be mindful of your friend's feelings and pay more attention to her when the other girl is around so not to offend her. but you should make it clear to your friend that you aren't taking any sides and tell her how you feel. what I'm saying is try to be diplomatic about it.

if you're friend gets mad at you for not taking sides then she's not a true friend at all. she should not be selfish and should understand and respect your decision.

You shouldn't hate someone just because everyone else is. That's not a good reason. What if your girlfriend started to do crack, would you do it too?

Why does your girlfriend hate her? Is it something petty or is it actually a valid reason?

Hate is pointless, even when you're the first one to do it. Don't give in to it like some dumbass, instead, analyze why your friend hates her, if there are good reasons for it. If there aren't, get her to stop hating her. Make her realize it's pointless.

If there are good reasons to, then you will learn this on your own and not need to convince yourself to do it to sate your friends' appetite for hating.

You can choose your friends but not your family.

It's your choice whether or not you choose to continue to be friends with this girl. Do you enjoy her company? Is she worth defending against your girlfriend's opinion? Are her resentment towards this particular person valid?

Who cares man, your friends, your choice.