I am not a lesbian and I am not a doctor.
However, I have dated people.
She's giving you incredibly mixed signals. And you're in a situation fueled by alcohol. She gets to blame the spirits. And for you, it confuses you.
Getting smashed is not a great way to navigate any sorts of relationships. Think of it a little like driving; it is safer all around for you to have your wits about you.
What is so different about girls versus guys when it comes to dating for you? Yes, I realize they are different people, etc. But when you are interested in a guy, is it just sex, or do you date and stuff? Either way, it doesn't have to be too radically different with girls.
As for this girl in particular, I fear she may break your heart. Again, she can blame being drunk (even if she liked everything that was happening) and then the person who gets hurt is you.
So -- why not ask her out?
Hear me out on this on, okay?
You're getting mixed signals. So clear them up, when you are both sober.
Say, "Jenny (or whatever her real name is), do you want to get coffee (or a soda or any other nonalcoholic beverage you prefer)?"
Never mind if you've done this a million times before. The past is prologue. Go, have a lovely time, and pay (the person who does the inviting pays). Then at the end, tell her you had a good time and say something like, "This was great. Let's make the next time a real
date. Are you free Saturday night?"
And see what happens. If she claims that she really doesn't mean it and only likes you as a friend, then you get to have a talk with her about her mixed signaling, and how it's not easy for her to smooch you when the drinks come out and then stop once everyone's sobered up.
A great person will be sensitive to what's going on and maybe didn't realize the effects of their behavior but now they know. Yeah, sometimes people really are that clueless.
And if she's unsure about her sexuality or how she feels about you, then you've given her a way to get out of things gracefully. But still make a point about the mixed signals. You have a voice in all of this and should use it. If she is being unfair, then she needs to know that.
BTW, if she says all this and the smoochy face continues, you might want to take that as your cue to get up and call an Uber for each of you and end the evening right there. Protect your own heart.
And of course if she says yes, that she'd love for the next time to be a real date, then have a blast and don't forget to name your first kid after me.