I left because I was mentally and physically wiped out. I had to take care of an infant, hold a full time job, because AH already lost his job by then and was too busy drinking, and come home every night feeling on the verge of vomiting, because I didn't know what was on the other side of the door. He often woke up when I returned home from work at 6. The house would be a huge mess with wine stains everywhere, AH would invent delusional (truly) stories that he believed were true, and then he would lock himself in the spare bedroom where he would watch movies all night and get so drunk that he would start throwing himself against the walls and moan so loud that it woke me up. Then he would wake me up countless times--mind you, I already didn't have any sleep with our baby--so by the time morning arrived, I felt like walking death. That in itself was enough for me to leave.