Suggest Treatment For Depression Caused Due To Failing Marriage

I have a friend who s is on the downside of his second marriage. He is unemployed, lashes out at everyone, and is clearly struggling with the social realities that he has isolated many of his friends. He seems okay on the surface, but it doesn t take a very deep dive to see how depressed he is. The problem is that he blames everyone but himself. He refuses to acknowledge his role for his lot in life. How would you define this condition