To me, there are limits even for true friends. When her behavior is impacting my emotional health and she's refusing to get help for it, I need to recognize my own boundaries and put my own health first. I can't be in a relationship with someone who turns on a dime like that, who one day is attacking me verbally and the next day is physically clinging to me and will not respect my physical or emotional boundaries. (Like constantly touching my hair or giving me kisses, which I've told her many times I'm not comfortable with, or insisting that we're going to get married someday and refusing to drop the subject, or asking me for $400 and berating me when I refuse to give it to her after she went out for a $150 with her boyfriend the night before.) I have limits.