Girl advice. What in the hell is going on here?

[True Gentleman]

Please bear with me, I know this is long, I just really need some help. Thanks

Okay so I met this girl, lets call her "Gabby", through a group of friends a few weeks ago. Was just trying to be friends nothing more. So my friends and I invite Gabby and a few of her friends over to our house to pregame a few times and get to know each other better. The next day Gabby adds me on facebook and is constantly messaging me for hours. The next day she gives me her number, without me asking for it. My fraternity had a party that Friday so I decided to invite them all. Gabby and her friends show up and she starts flirting with me, a lot. We eventually start dancing together and move on to making out, plus a little touching. Gabby seemed really attached and was making sure she held my hand wherever we went. We eventually leave the party and she insists we go to this bar so she can dance with me. We go to the bar and the dancing gets pretty dirty, accompanied with more making out and touching. She invites me back to her apartment, but instead we go back to my place because I live a lot closer. She sleeps over and we end up fooling around for hours in bed. While we're messing around she keeps telling me how she wants this to become a usual thing and how we have the entire semester to mess around together. I drive her home the next morning, because she had to go home for the weekend & there is absolutely no awkwardness. Before she gets out of the car, she leans in for a goodbye kiss. The next day she texts me every 5 minutes for hours. The day after, Sunday, I text her and she just responds with one word answers or stuff like "hahahaha". So last night, tuesday, she was texting me asking if I was going out. She told me that she would text me when she was at the bars later on because she was going out with some of her female friends. She eventually doesn't text me, so I texted her asking if she planned on going. No answer. So my friends and I go to a bar, and I see her making out with some random dude, which really pissed me off (not sure if she saw me). As of now I'm definitely not texting her first and have no idea what to do. So please tell me what in the hell is going on with this girl.
Also should I continue to talk to this girl? I am really attracted to but I just don't want to waste my time.

[Katie]

Simple. She's crazy.

[Granty]

You might be a true gentleman but she doesn't sound like a true lady.

[broken]

I think she was distracted, but she is definitely into you... Be careful though, because girls like her might sleep around for just the fun, if you were looking to start a real relationship with her

[StoryWeaver]

She sounds impulsive and controlling. Let her go; she's not worth it, and she definitely isn't looking for a committed relationship. It's healthiest if you cut ties right now and let it go. If she messages you again, tell her that you saw her making out with someone else and that it offends you. If she wants to be with you, and you want to be with her, that needs to be established. But my advice is don't even go there...

[Call me Shug♥]

do you want the true answer? If yes, read this, if not read my second possibility.
I think she is basically being a whore. She doesnt want you for a relationship and she just wants to sleep with you, period. She wants to fool around with other guys to and quite frankly doesn't care who she sleeps with on the way. This can go two ways: you end up with a sexually transmitted disease or you get lucky but she continues to play with you and every other guy. What do you think happened after that bar with the guy? technically, she isnt doing anything wrong and is pretty smart in that aspect because she highlighted how she wanted the fooling around to be a normal thing, she never said relationship so basically, since you arent dating, she sees nothing wrong with that she is doing, to her this is normal. You can either go with it or find a better self respecting girl.


Second Possibility.
She is not interested in anyone or is playing hard to get with you since she was being so easy before. she is trying to make you jealous, but she very much might even not want anything except sex right now.