I'm ashamed of being a ?

Honey! Please, please, please don't be ashamed of yourself. There's nothing you can change about who you are. Regardless of what anyone says, you're a beautiful person. You're probably just not used to the concept of being ... every LGBT person goes through that phase where they feel like they're somehow "wrong". Maybe dating this proud gay girl is the best thing for you. She could help you come to terms with your uality and learn how to be a proud woman yourself. If she's annoyed that you're uncomfortable with your uality, just lay your cards on the table and tell her everything. If she's a nice, caring girl, she'll understand and help you through this uncomfortable transition period. She probably went through the same phase herself when she came out of the closet. The best thing is just to know that you'll always have someone supportive to hang onto.