First time

This is my first time posting to any forum like this regarding my husbands adhd. I am curious if anyone has experienced a husband who hyper focuses on a business that seems to consume him. He can't hold down a steady job because he is convinced that this business is the end all be all (we will be debt free, I will be happier, etc.). We have been married for 10 years now and I am pretty numb. The job changes, increases in debt, cross country moves, and general instability have taken their toll on me. He has made very bad financial decisions because of the business and over the years I have tried to get on board but for the life of me I just don't even understand what the actual business is because it changes to him writing a book, brokering, training, etc. 

Can anyone out there relate? Any and all input, advice, help would be greatly appreciated