This is all well and good, but my ex's new girlfriend is my grad student -- well she is not my student anymore. My 15 year old is beside himself and this woman who is still a student in my department has consistently found ways to make my work enviroment miserable and to pressure my ex to hassle his son about accepting her -- my son refuses. We have joint custody and he goes to his dad one week and me the next. My son does not want to be with his dad because of the gf. The state I live in does not allow co-habitation with a non-parent while an underage child is in the house and my son has made it clear that he will leave if he brings her around. That said, my ex waits until my son is feeling ok, and I seem to be doing well and starts pressuring my son and trying to make him feel guilty...it is horrible and I often have a confrontation with my ex that sends me into downward spiral -- I get depressed and my daily life falls apart. I just don't know what to do anymore.