Is it normal if i am feeling this way about being gay/lesbian?

I'm not lesbian but I just go with the flow. Yeah plenty of girls get drunk and make out with each other and they are straight. But I feel like its different for me. When I get tipsy and see a beautiful girl I just want to go up to her and tell her she is beautiful and eventually we kiss. Ever since a little girl, I have hit on sexy women. My older brother even thought I was lesbian. He passed away but I'm sure he's looking at me now like "I knew it." Like I said I am not lesbian, I love guys and I love their attention. But with this mindset of mine in terms of girls, its been getting me into trouble the past few weeks. I have a bi-sexual roommate and we've been going out every weekend. She knows where I stand with gays. I believe we're all free and there's no label. As we get drunk, yeah we might get a little touchy like teasing each other she can't have me cause in society I am "straight." That still doesn't stop me though from revealing a lot things I mean after all, drunken minds speak sober thoughts right? So I just blabber out how I feel about girls when I am drunk or start flirting with my roommate. I think she is starting to get annoyed though because she is probably confused like am I straight or bi? I want to say I am straight but I have these thoughts of women and when I'm drunk, they come out. It can be dangerous to the point where I kind of don't want to drink anymore with her because each time we get closer and that's like over the boundary of being roommates. Plus our other roommates kind of discovered our little bond we have last night. And of course its all cause of me cause I say some revealing things and do some revealing things. I believe my roommate probably has a crush on me though and Im just instigating it. I don't think Im lesbian cause I don't take it that serious when Im sober. Like Im not looking for a girl to date. I guess you can call me curious? But really curios. I don't know.