Do gay guys actually go with girls just so no one knows they are gay? How would they be able to "perform" on the girl if they weren't attracted to them?

I am a young gay female. I am in the middle of a relationship. It is the first time for both of us. A friend gave us a book of stories and poems, etc. about gay relationships. In a couple, there were mentions of safe sex. I never realized that sex between two women was not safe. If you could give me any details of safer sex, it would ease my mind.

I'm a bisexual female and I've been dating a girl on and off for the past couple years. "On and off" due to distance, but the point is that as much as I love her, I still feel like there is a male void in my life. I'm not sure if it's because I get a lot of attention from guys and very little from girls, but lately I've been thinking that I would feel most comfortable in a committed relationship with a man and a woman. Do you think there's any hope in finding others who would be able to maintain this kind of relationship in a healthy manner? I have a lot of difficulty finding the right chemistry with people to begin with...

I'm a lesbian and I think that my roommate could be slightly homophobic. We have never really had a great relationship but now that I've come out to her, we don't talk much at all. How do I talk with her about this issue so that we can put it behind is without making it so awkward?