| | Re: stay at home dad with no plans for future
i know exactly whats wrong with your husband. The things you described aren't behavioral problems but are signs of mental illness. And yes he is in denial about it. Very often people with mental illness display symptoms that lead to people classifying them as 'losers'. Not finishing his degree, not able to hold on to jobs because of lack of interest, pushing people away from his life and yes the positive response to the life coach are all signs that he has some mental illness. What you need is to find out what kind of mental illness he has so you can seek treatment for the same. In most cases, the right treatment along with a life coach helps such people get their life back on track. I'm guessing the therapist concluded the same thing and suggested the right track but your husband has gone into denial.
My suggestion would be for you to find out what kind of mental illness he has (consult a psychologist) and get adequate treatment. If a life coach turns out to be expensive, maybe you could do that for him.
Worst case if he won't go for it then you have only bad choices in front of you. Accept him as your dependent for life or let him go his way (...homeless) and convince yourself you had to let him go for you and your kids survival.