So had a thing like a year ago, went on a couple dates and it didn’t go anywhere. Made out a couple times but never banged so when we went to college (we go to the same one) last year it kinda fizzled out. Cut to a year later now we match on tinder made some jokes and got her number but it was pretty plutonic. We were texting about something and she joked about how me getting some tattoo got her “hot and bothered”. We had some banter and then she jokes how we should have a threesome and stuff. After a bit of that I was like hey I’m going to this dinning hall tomorrow at 7 you should join me, afterwards we can play ping pong at my dorm. She said dope and to remind her tomorrow. We meet up for dinner she seemed really interested in what I’ve been doing and how I’ve been, we chatted for a while, we had good eye contact, she was leaning in when I spoke, stuff like that. We go back to play ping pong, but the table was taken so she was like “give me a tour of your room.” I show her the room and was like “since the table is taken let’s watch Netflix instead” she said ok but she could only stay for like 45 minutes because she needs to get back to studying. It’s finals week and a lot of us have tests tomorrow so I know she’s not making up an excuse to not stay, at least not completely. We watched an episode of a tv show during which I would put my hand on her shoulder or leg when telling her something and it felt like neutral. Like not repulsed but I also wasn’t sure if she was super into it. We shared some jokes, had fun conversations between ads and during the show but in the end she was like ok it was good seeing you again, and left. Now I’m not entirely sure what she wants so I’m just confused because when we talked over text she got super sexual very quickly, she seemed at least interested in me during, but towards the end it became pretty plutonic. I’m thinking Maybe she wants to hook up but she also needs to study, because she was talking about all the work she’s swamped with atm and that she’s nervous about the test tomorrow. But it could also be she’s looking for me to be a friend and that talk about threesomes were just joke jokes and not “ I’m joking unless you’re into it” type of jokes that I thought they were. What do you guys think?

TL;DR: had a thing with a girl that didn’t work out last year, matched on tinder recently and got her number, she made jokes about me getting her “hot and bothered” and how we should have threesomes, met up to eat together at our campus dining hall and go back to my dorm to play ping pong, table was taken so she asked me to show her my room, show her the room and suggested Netflix, she said yeah but she can only stay for 45 minuets then she had to go study for a test she was nervous about, touched her shoulder and legs during and she seemed neutral, she seemed to be enjoying herself throughout but ultimately left without anything happening. How should I interpret her actions?