If your girlfriend is attracted either romantically or sexually to other women, she might be gay. You won't know unless you ask, but do it in a way that is not demeaning or threatening. Ask her if she's ever thought about it.
'I'm bisexual'
If she is someones girlfriend and not the lesbian's then she might not be a lesbian. She could merely be friends with this girl. If she is the lesbian's girlfriend then yes she probably is then. :)
Then your a Lesbian?
She tells you that she is a lesbian.
Be there for her and support her. DO NOT FRECKEN DUMP HER!
This question is rather broad, but in general, open communication is best. Tell her you love her.
just come out and tell her what you want to do
Well that'd be a lesbian cheater.
With a girlfriend.
I doubt she would be your "girlfriend" if that was the case.
tell him the reasons why you are a lesbian...he will understand.
A bisexual is someone who is physically, sexualy and emotionaly attracted to both boys and girls. There is no real way to tell if your girlfriend is into you. If your girlfriend is not kissing you or doing sexual things with you, it doesn't mean she is not interested, it could mean that she is shy, or has insicurity or a personality disorder. Try talking to her. If she isn't a lesbian or bisexual then she usually wouldn't be dating you.