Is my "straight" friend, not so straight?

I'm not sure of my sexuality, at all. I find women attractive, and I've had sex... I also find men attractive, and I've fooled around with two that I know quite well. I've never been so confused in my life. I like girls, but I can't deny that I like men sexually as well. My parents would be ok with it, as my older half brother is too.

My friend and I, we're both 19. We became closer when we went off to college and had almost every class together the first semester, and every class together the second. I now consider him one of my best friend's, and enjoy spending time with him. When we first started hanging out, it felt forced. We only started hanging out due to a mutual friend of our's, and it just ran it's course from there. It started becoming easier to talk to him. Before we know it, we're all video chatting, and having a good time with each other. I find out he's never had a girlfriend, and I'm not sure he has even kissed one? He doesn't like to talk about that topic to much. After we started becoming closer, he started to talk about different things.

His parents aren't big on homosexuality, at all. His dad bluntly asked him if he was gay when he was like a Sophomore in high school, he said wtf no! He didn't tell me this, he told our mutual friend, and she told me. He eventually tells me. He also likes to bring up the topic of gay a lot. We were on our way home from college one day, and he asks me out of the blue "What would be the worse thing you could do to be thrown out of your house"? He says "I would if I was gay" ... I didn't really know what to say.

He calls me gay, fa-, at least 20 times a day. It honestly doesn't bother me, because I know he's joking. I say it back to him, which kinda bugs him, but not really. He also likes to say "That's because I'm straight". We talk about girls. He talks about them to, but not like I do. Our mutual friend thinks he's gay, and tells me this. He also touches my arm, but just like patting on it, nothing sensual.

As I said earlier he brings up the topic of gay a lot, he did it just two weeks ago. We was sitting at pizza hut, things got quite. And he says, so... my parents were have this discussion about gay people, and how it's wrong. Random topic huh?

We're hoping to get an apartment together this summer. I feel like he's waiting for me to tell him I am, so he will? But I don't know if I'm just looking for signs closely because I want him to be?

I left out a few examples, but I'll give you one more. We was chatting on Facebook. I said, don't let that one chic get ya (inside joke). He responds with, "I'll let whoever I want get me " ... I bring it up like two days later, and he said "oh yea didn't I say bye or something like that"? Since he said that I was like, "oh I forgot".

I feel like the signs are there, but what if I'm wrong and I lose him? I'm scared you all... Terrified. Thank you so much for taking the time to read this.