That shıt's bananas! But yeah, she sounds like damaged goods. I had a chick long distance that insisted on talking every night and I became her whole life. Needless to say it bothered the hell out of me and it ended in a big pile of human disaster.
She sounds like she has an addictive personality. Not good. Sadly, those kids were probably conceived while she was in one of her drunken stoopers or high. Speaking of kids, she has two and is not acting very motherly. She'd rather go out and get trashed. I would seriously have a talk with her. Tell her you are not the one for her. Büllṣhit her and tell her you'll be friends, yadd, yadda, all that crap, and just disappear. Could even be BPD. Obsessive for sure. RUN, Forrest, RUN!