asexual? heteroromantic? bisexual

okay this might be a kind of confusing story. ive never felt valid anywhere and here's why.

i believe sexuality is one of the most fluid things we as humans can be. That being said, I used to think I was bi-sexual. Ive had sex with both genders and I feel sexual attraction towards both genders, BUT the thing is, I only feel romance towards men - I can only see myself dating a man, marrying a man, etc. As well as, every time i've had sex with either gender - i hate it? I hate having sex! no matter how turned on I get by either gender, as soon as it comes down to actually having sex, i am miserable. i just want it to be over as soon as it starts. I can literally go months without having sex.

I just get so confused because I do get turned on and I want to have sex before it happens. Am I actually Asexual/Heteroromantic? And what about my sexual feelings to both genders? Is anyone going through the same thing? what do you identify as? how have you processed everything?