That's insane. The texting is very over the top and blatantly obvious. She is bating you. There can be only two reasons for this: either she is a crazy messed up drunk, or she's a sociopath. I have found that drunks love a fellow drunk buddy to drink with, makes them feel more normal. I have also found that sick messed up people like to toy with people they view as weak. Makes them feel superior. Either way, as you are trying to hold it together, I can only suggest you lose her number and never talk to her or see her again.