Does she like me or am I delusional and she's just being, like, my friend?

Ok so I(18m) like this girl(18f) and I think she might like me too, but what do I know?

So I'm gonna try to keep this on the shorter side, but here's kind of a list-type paragraph thing... yeah

She said that we should be in the same classes and the same sections and verified that I had chosen the same ones as her, everyone else did their schedules on their own and we checked later but no one else specifically selected classes like that.

She always stays for a couple hours after class ends waiting for a ride and I'm the only other person in our fg that does that too, she could get a ride earlier but she doesn't and she just stays there with me while I wait for my sibling (we have different schedules but the same school), she's never said that she does it because of that though. She also gets along really well with my sibling and they hang out without me when I'm at work and they're still at school.

She remembers some things I tell her that I didn't expect her to remember, like when I was ranting about something about me being kind of annoying and then like two weeks later she mentioned it but like in the form of a compliment.

She also always like teases me and brings up things I did like one time I accidentally "threw" a dangerous item at her (not exactly what happened but that's a whole different story), "blames" me for slight inconveniences in class (in a way that is obviously joking), has called me smart in a genuine way more times than I would expect especially since she's just as smart as me if not more.

But, I have a pattern of whenever I start to like a girl, I end up finding out she's actually lesbian. And I know that my current crush is at least bi, so I also kind of have to find out if she's bi or fully gay bc I legitimately have no idea, it has just never really came up enough other than in brief passing where we both mentioned our other friends calling us gay (separately, these are friends from high school for each of us). Just to be clear, I don't have a problem with that at all, I'm just a guy so I'm not gonna like date her if she's a lesbian.

tl;dr: she specifically made sure we were in the same classes, she always stays an extra 2-3 hours after class ends just sitting there with me, she remembers things I mention that I don't expect, calls me smart, teases about stuff all the time (someone commented on it once). But she's at least bi, possibly gay, and I am a guy (no problem if she's bi, if she's gay then she doesn't like me).