I think she's playing with me. Am I running good game?

One chick I've been trying to game is giving me very mixed signals. She's been very awkward around me since I've met her.

Sometimes I'll see her between classes and I'll approach and she avoids eye contact and gives me monosyllabic responses, or almost immediately pulls out her phone and avoids me. Other times I'll approach and she's talkative and engaged with me, almost like she's trying to qualify herself.

Anyways, I ask her out to go get a drink with me last week, and she goes with me. I enjoy myself and she seemed like she was hit with a bad dose of social anxiety. She was very awkward. There was light touching and what not but I also didn't think my game was to on point either. I thought I totally fucked up and lost it. We leave and go our separate ways and I kicked myself a bit because I thought I could of brought her back to my place and I didn't go for it. Anyways I move on and forget about it.

A few days later I'm working a free lance gig at school, she saw me in passing and randomly showed up, asked what I was doing. We talk for a bit and have some fun. She caught me Tindering and it got sexual because she started asking me what kind of girls I like, who I thought was hot etc. I have some fun with it and then get back to what I was doing, she leaves.

As time goes on she's giving me that on and off behavior. Either acting totally aloof or trying her hardest to engage me, and each time it seems like it gets more intense.

The next day I go to a bar that everyone usually hangs at to grab a drink and run my social skills. She's there by herself, so I go and approach. We chat, and this time more touching. She keeps pressing her leg up against mine. After an hour or so, I get up to leave and ask her if she wants to go back to my place. She says she's good and wants to chill at the bar. I give an indifferent attitude, and as I head for the door run into a dude I see at the gym all the time. Shake his hand, chat him up, leave.

Today she gives me more aloofness. Tonight we're in class and she's sitting behind and off to my right. Close enough she puts her feet up on my seat, so I reach down slowly and run my hand along her foot and up her ankle. I turn my head and make eye contact. She giggles and gives me some devious grin. We keep doing this the rest of class.

Once class is done, she and her friend get up and leave the room like its contaminated with the fallout of the Chernobyl reactor.

What the hell? Is she playing with me? What should I do next? Is all the aloofness just constant shit testing? It seems like every time I act indifferent about it, she comes back at me harder.