Am I gay, bisexual or just confused?

Hi, so I'm coming up 21 this month & got out of an abusive relationship with a man, may I add! During the relationship I did once say I was bisexual but I took it back right after telling him and brushed it aside. Since I left I genuinely can't stop looking at women in a sexual way. I have slept with men since I finished with my ex partner but it now no longer appeals to me, it doesn't feel 'right' anymore and it scares me. It felt fun etc up until a few months ago. When I'm drunk with friends I'm pulling women and when I'm sober.. I'm feeling attractions to them. I don't know if its a phase.. I hope it is as my parents aren't very understanding of these things. I had sex with one of my close boy friends whilst drunk and I didn't enjoy it. Obviously I can tell when a guy is nice looking but I don't actually feel attracted to guys anymore, it's more of a 'oh pretty' type thought that springs to mind. I've came out as bisexual to just two of my friends and one colleague of mine who is also a lesbian but she did say I dont like look one but she got a certain 'vibe'. I dont know what I actually am but any advice would be nice?