You might want to take a look at the website called Love Fraud. While the guy's behavior may be "only" bipolar disorder, I think some of the issues people (mostly but now all women) have or have had there, would strike a chord with you. Their partners would woo them and shower them with affection for weeks or months -- then suddenly change their personalities. I have experienced this myself with 3 guys. I believe at least one of them was unipolar manic. He'd been involuntarily hospitalized for mania, and had been given lithium at that time. I suspect one of the others was bipolar, but not sure. I do know now the second man I describe was very affectionate for only TWO WEEKS, and I thought that was the "real him." I saw his "potential" to "go back to the way he really is." He would show the Dr. Jekyll side of himself if we met a new person who had status of some kind, like a professor or other professional who visited us. Once he had them convinced how great he was, he'd switch personalities, and become Mr. Hyde -- start having the foulest mouth you can ever imagine -- driving them away. He drove away all my friends, too, but I'd become hooked on him. I could not bring myself to get away, despite every "red flag" in the book. After NINE YEARS wasted on him trying to "fix him" and believing if I left him he might commit suicide, I left. Best thing I ever did, but I got really hypomanic and upset for several months after I left. I did a lot of things that I am now very embarrassed about doing.