My Daughter Believes I Am Gay.

I got a girl pregnant and married her when I was young. She thought I was a straight guy. I actually prefer sex with men more than women, so I secretly began doing stuff behind my wife's back. I was extremely cautious about never letting anyone know, and everyone thought I was strictly interested in women only. One day when our daughter was just 4 years old, she came home unexpectedly from work because she was sick. She caught me in our bed with a guy. Our marriage was instantly over. I was close to never seeing my daughter again as well, but eventually we sorted out shaved custody. I usually only have my daughter on the weekends and most holiday breaks, this is fine as I need to work during the week. My daughter has never been exposed to my sexual partners, if I had a boyfriend, we would show limited affection without even kissing in front of her. She's also never known me to be in a relationship with a woman other than her mother.
My ex and I are actually great friends, we have a close bond, with our daughter, and interact often with complete comfort frequently.
Recently, my daughter has begun to talk about what it was like when we were married, she's always talking about it. She desperately wants her parents together, but it is never going to happen. I can't convince her either. I have been with a few women over the years, but my daughter just doesn't know about them. She thinks I like guys only. She's constantly asking me why I don't like girls and just boys, and her talking has gone too far a few times, already. I have had to stop her talking, as we just go around in circles with her getting more graphic as it progresses. Now my 18 y.o daughter has stepped things up. For the past few weekends, she's been wearing some quite revealing outfits around me. I confronted her immediately, telling her that's inappropriate to get around in front of your father dressed like that. Her defence was she's deliberately wearing the outfits to remind me that girls are attractive and exciting. Maybe I won't be gay once she finds the right outfit. I asked her if she's got any idea how messed up that is, and she said, not as messed up as choosing boys over girls. She's even began acting like she doesn't like gay people, where she was always proud to have a gay dad. There seems to be nothing to stop her, getting around my house like this, I have totally run out of things to say, request, demand, and even threaten with her. The outfits keep coming. I try hard to not allow her to know she's secretly turning me on. It's the first time I have ever thought of my daughter as hot. I am so confused. I know she just wants her parents back together, but my ex is now nothing to look at, she's overweight and not aged well. Plus we're friends now. I just need my daughter to stop this before I lose all control and fuck her. She's got no idea she's turning me on, and she's constantly trying. I am sure she isn't wanting to get me turned on to her. She believes she will spark something that I am missing. She's the one missing it. I'm having to hide my erections. The messed up thinking this has caused me is unbelievable, well maybe not here. I can see this turning taboo soon and I think I want it to happen.