Trying to figure out my sexuality [Discussion] [Rant]

Hello! I’ve had a boyfriend for the past three months, but I think I might be a lesbian. We haven’t kissed, and I haven’t kissed anyone before. But recently, I realize that I’m dreading it. And after discussing with my friend, I’m not just dreading it in the “I’ve never kissed anyone” way. I feel genuinely nauseous when I think about kissing him. I’ve been out to my parents and close friends (but not my boyfriend) as bi for about three years now, but I’m not sure what to do. I always thought I liked men. Now, the more I think about it, I’m wondering if I do. I’ve read about comphet, and I’m wondering if that’s what I’m doing right now? Do I need to break up with my boyfriend? I spoke to my mom (who’s supportive, but also not part of the lgbtq+ community) who said I might just not be ready for a relationship with anyone, and not to rush, but that doesn’t feel right either. I feel like I’m ready for a relationship. But everything I do feels so forced, like I have to make myself do it because I’m supposed to. When we held hands, I felt awkward, but happy. But maybe because that’s what a boyfriend and girlfriend should do? I don’t know. I’m confused, and lost, and honestly freaking out. I don’t want to hurt my boyfriend, but I also don’t want to ruin our relationship if it turns out I’ll eventually get comfortable. I don’t know what to do. Any help or thoughts?