Going through a similar thing Adam but have been married nearly thirty years. Good to get out now while you have a good chance of having a better relationship with someone in future. As the wife of someone who tried to commit suicide though...I do not feel it is a spouse's role to keep said spouse safe. It's for the person with the suicidal ideation etc to take those thoughts to trained therapists etc. I think it puts an unhealthy strain on the relationship. And all our individual therapists agree.