>Everytime we see each other, she usually has this pissed

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>Everytime we see each other, she usually has this pissed off tone, makes fun of me, and argues with me a LOT.
>Whenever we hang out, she always sits next to me at the tables.
>One time we went out drinking at a club she pulls me up to dance with her
>keeps bumping into me while we're sitting, and makes fun of me for not drinking as much as she did, calling me a pussy, a bitch, etc. etc.
>Taking a cab ride home, she latches onto me until we drop her off.
>I walk her to her door and she tries kissing me twice.
>I didn't want to reciprocate anything because she was extremely drunk and I personally just can't take advantage of people like that.
>Whenever we argue, it's pretty much about pointless things, but she gets really nasty with me.
>We always call each other names and make fun of each other, but recently her shtick has been making fun of me for being single, she's been doing this for a while.
>She also randomly decides to tease me or comment on things about me as well, like how my "pants are too tight", "you look like a fag", etc.
>She called me a loser and told me to prove her wrong by getting a date for the upcoming Valentines Day Dinner/Dance we were supposed to go to(Which I didn't go to anyway).
>I ignored her for a day and she ended up commenting on my facebook page multiple times , even on older posts, of course, with a smartass comment.
>A mutual friend of ours asked me if I would ever consider dating her, which to me says "SHE ASKED HIM TO ASK ME" but I can't be too sure. He tells me she never asked him to do it.
>she does not act like this with anyone else.

What exactly is going on? Why is she like this? Does she like me? Why is my social/love life so interesting to her that she has to keep fucking with me about it?