Most Helpful Guy
At some point you need to be as concerned about your own feelings than what others will think about you and another girl in a relationship. You sound like you are really wanting to be with this girl and that your bisexual urges are pushing you toward a female relationship. Do you listen to your body and your heart or do you listen to the social pressures that may look down on a bisexual relationship?
In today's world, the acceptance of a bisexual or even lesbian relationship is not shunned any longer which opens the door to people who are torn by the biological urges of a same sex relationship. I believe it is more of a struggle for men than for women as it is more acceptable for two women to be in a relationship than two women.
Stop worrying about what others will think, you can't control that, but you can control which sex you choose to date. Have you had sex with another girl and know the pleasures only two girls can have? If not, this may be the one who will take you into emotional and physical pleasures that only another woman can show you.
Relax, enjoy, and listen to your heart.
Most Helpful Girl
You're bi. You're going to have to deal with it someday. You prefer girls so have as much chance, if not more chance, of ending up with a woman in the long term.
I'm actually going through the same thing. I've always dated guys, despite feeling like I could only really love a woman, and now I'm dating a woman. It's weird because I'm not out to my family or most of my friends, but I have found myself not holding back at all. I don't even know if I like her but you'll be surprised at how much you let go when you're having fun. If you end up liking her, it'll be much easier not to care what people think.