I want to tell you a story about someone I know. She was growing up in a very traditional Catholic country. She knew she was gay since she was a kid. It obviously led to all sorts of confusion and inner conflict. She though she can force herself to be straight. So she started dating a guy. Naturally she was disgusted by it.. not because he was a bad guy, just because she was forcing it. She started drinking. Later she split up with him and started dating another one. At that point she started snorting heroin to make it tolerable. Some months after she was totally hooked and couldn't get out of bed without a line. She was 17! She had to ask for help, and she did tell everything to her mum who helped her though and supported her. Now she is 32 and she has a gorgeous girlfriend, they've been together for 5 years.

My point is,don't force something which doesn't feel right. And if you are attracted to someone, it doesn't matter what gender/sex they are if they make you feel alive =)