Sounds like a drugged out weirdo to me. I would just stop talking to her. This Is going no where.
She is basically looking to party with guys with designer drugs who I am sure she is free loading off.
I am just going off what you posted. Your game was really weak. No comfort, no attraction, straight number close then a good bye. If she really liked you, she would have hanged out with you sooner, but right now, she is just screwing with you. Girls also love to have the validation. And your also talking to her for validation, probably because your not talking to other girls right now, cause if you were, you would have dropped it.
Fuck with her back, On friday or saturday: (I don't speak drug language so so change the word if your familiar)
You: Pre Party at my Pad, A lot of Alcohol, and some really good blow, and mollies
If she is down, give her the address to a Drug Rehab Center, LOL! This would be funny!
Next day, just text her you gave her the wrong address, lol, and cut it off.
Also, don't get attach to this girl, keep your distance IMO. There are plently of hot normal girls to talk to. Just work on your game, it will be worth it.