Do I break up with my kind boyfriend of over 2 years? 26NB and 25M

We have lived together for over a year and he’s been a great boyfriend. He’s kind, a good listener, and our sex life is pretty good. He makes mistakes like everyone else but he handles criticism pretty well. He’s definitely the best person I’ve dated.

However, I can’t stop thinking that I was meant to be with a woman. It’s driving me crazy. My boyfriend is my best friend and the thought of losing him makes me feel sick. I also think we are not as in love as we were in the beginning. It feels like a relationship between two friends who have sex with each other.

It’s selfish but I wish I could have both, I wish I could keep him and still have a woman in my life. We tried polyamory briefly and he wasn’t happy about it. Do I break up a relationship with a great boyfriend and roommate? I don’t want to hurt him but these feelings I’m having are nagging me.