You're a person that's feeling pressured to fit into some category.

Sexuality isn't black and white. You aren't just straight, gay or bi, but people fall on a sliding scale. My wife is a little bit bi curious for example. She would never want to actually have sex with another woman, but enjoys watching other women. What I'm saying is, don't worry if you fit nicely into one of the major categories. Be who you are.

Also, people have different libidos. For some, having sex is all consuming while for others ... meh ... they might get around to it. Again, don't worry about it. I would worry more about working on a positive, supporting relationship in which you develop a strong emotional connection and then let the chips fall where they may.