because he said he could make her graduate from high school. And this BM also married a man who did drugs with her teens. I wonder where the biodad is in this situation. Maybe he walked away (this woman is nuts), maybe she drove him out of the picture, or maybe he was/is a loser too. I think it's one of the former two:

http://www.youtube.com/watch?v=6aDTizzI9sE