I don't know what to call this feeling

I've always liked boys, but I also have been really interested and supportive of the LGBTQ+ community and the thought of being bisexual has crossed my mind but somehow I've always pushed it to the back of my mind.

I met her last year and I've never felt so understood. She makes me feel warm and her eyes are so pretty and her hands are so soft and feel nice to hold and sometimes I want to kiss her. But I can't imagine anything sexual with her? I mean, I can, and I'm really unsure of whether I'd want that. I might, but I don't know. I haven't felt this way for... a boy ever? I can, but I'm just saying I haven't met a boy like that yet but she feels so perfect. I told her about thinking I'm biromantic heterosexual and she said she thinks she might be as well. I told her I like her a lot. She said she thinks she might like me as well but she's really unsure and doesn't want to be in a relationship so soon after her last one (its been 6 months) and I shouldn't get my hopes up.

I'm trying to imagine myself liking another girl as much as I like her and that thought seems so far away. I can only imagine myself liking a girl like that if I know her? I considered demiromantic for a while but the labels confuse me and I feel really lonely.