I've been with DP for 12 years and we have a 10 year old child. Our relationship has been deteriorating over a number of years and most recently DP has started self-harming when we argue. He cuts himself and bangs his head against a wall. He also talks about how he wishes he was dead, although he says he wouldn't actually kills himself. A few days ago I told him I would leave the relationship unless he seeks help, and he has booked himself in for counselling but is angry because he's been forced into it. Was my threat the wrong thing to do? I am at the end of my tether.