Dating

Is she interested and did I mess up?

I can be terrible at reading social cues so looking for opinions. We have a class together a few times a week and that's the only time we interact. We didn't really talk much at first, but for a couple weeks now we've got that back and forth banter thing building, she's always looking for an oppurtunity to tease me. Now it can be near constant and we've almost interrupted class at times. When it's quiet she's called out my name to get my attention, even from behind me, just to pick on me or make some comment as she walks past.

And eye contact. Lately I've noticed her looking at me, even staring, when the proff or people are talking, even if the attention is on the other side of the class and she shouldn't be facing me. When I look back, initially she would just look away immediatley or after smiling for a split second, and then I'd notice her looking again later. Recently she'll just keep looking at me with a little smirk and we lock eyes and start doing a joking sort of what are you looking at, making gestures etc. Or I'll be looking around and as soon as our eyes meet she cracks a joke at me like she'd been waiting. I've also noticed her looking my way when something funny happens in class. She's also started making a point to say goodbye at the end of class, in a teasing manner of course.

I think I might have messed up at the end of last class though. Not 100% certain but it seemed like her friend gestured for me to join the two of them for lunch as we left, but I didn't realize till I was halfway home; and now we're on a break for a week and won't be able to really interact the first week back either due to class circumstances. So things were just seeming to be building but now might not talk for 2 weeks.

So yeah, what do?

Is she interested and did I mess up?
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