AITAH for wanting to break up with my bf?

So I’ve (F) been in a recently fresh relationship, about three months, with this amazing guy. It’s a long distance relationship but I thought that it would work for my first time dating, and it was great for the first month. But recently I’ve been in a mental turmoil about what to do regarding the relationship. To me, it feels like he was rushing things, telling me he loved me a couple days into the relationship, telling me that I’m his one and only, his soulmate. And I just don’t feel the same way. With him saying all of this he kind of freaked me out, with me being only just 18, I want to live my life (and possibly be with a girl at some point) and not have to give him all my daily attention and affirmations. But there’s this part of me that feels like I’ll make a mistake if I break up with him, I feel like I’ll never find someone else. He’s done nothing wrong to me other then just moving too fast, which I’ve told him, and my friends support me but I just want to know the honest truth if I’m the asshole for wanting to break up with him.