18m

Dated girl from work (yes don't shit wear eat, didn't trp at the time, temp job so couldn't give a fuck, boss loves me)

Anyway, we stopped talking and now all the time at work, her behavior is passive aggresive. She just makes jokes about how I get no pussy or something, and how I can be an ass, jokes about my sexuality. She doesn't really say any of these to me directly, and sometimes she sounds serious when she says these jokes, other times she giggles. But then will flirt with me, and steal my phone and take selfies. And we'll talk and have some laughs as well. Also she asks some weird validating questions like "are we even friends". All this can happen in a 2 hour period.

I have a frame so I usually just smirk and kinda act oblivous whenever she does these things. She does 100% of the approaching and intereaction starting as well.

Also noticed when I sat alone with her at break, I was watching videos on my phone and she kept trying to start conversations by saying the most random shit and dumb questions. If I didn't really spark more convo, she said "yeah good talk, your just awesome" with a sassy attitude. Again held frame and went back to doing my own thing

What is this?