Struggling with self-acceptance

I’ve been dating a boy for almost 2 years now. But I think I might actually like women 😬 I’ve been fantasizing for a while, and it’s been bothering me so much. My boyfriend is one of the kindest people I’ve ever met and I genuinely care for him so much, but I don’t feel like I can keep going with it. It feels like I’m cheating myself out of the life I want by staying with him, but the last thing I want to do is hurt someone that I care about.

any advice??

thanks <3