Everyone will always judge you/me/anyone. Does their opinion about who you should have a relationship with matters? Of course not. If she teases you a little about it and it's not serious, just shake it off. If it does get serious, tell people you trust about it like closes friends, parents, even your girlfriend's relative and it could eventually stop. Never feed the the people who teases by giving them attention by replying to what they do, you'll be giving them what they ask for.

I think that's all you'll need for now! c:

well, they're frickin' hOMOPHOBICS!

People will find any reason to bully someone. You could have a boyfriend instead of a girlfriend and they'd find something else, so don't take it personal. A lot of why people bully others is personal to them. The obvious reason would be that they aren't used to girls having girlfriends, but sometimes it's that they have something going on in their life that's hurting them and so they lash out. Some internalize those feelings and hurt themselves and others externalize those feelings and hurt others. So it's really about who they target if it's not themselves. If it's to release negative feelings, they want a negative reaction out of you. Ignoring them will only frustrate them, so your only option is to fight negativity with positivity. This doesn't mean laughing at them, because that will anger them. It means always replying sincerely and positively. Never retaliate but just treat it as another opinion that they can have and doesn't hurt you.