4 year relationship ends, 4 months ago. Did not want responsibility of my children, has 3 of own. Said his feelings changed after heart attack 2 yrs ago. Never told me. Boyfriend, still married, ex wife moved down the street from me, with her boyfriend, and there kids 3 yrs ago. Ex boyfriend said "he loves me-but", it's not me, its him. It's not our relationship, it's life around us. How do I move on from this with out going nuts?