Yasmin,
The current theory that is generally accepted by the majority of marriage counselors is called Imago Therapy. I recommend the book by Harlin Hendricks, the inventor of imago. It's a little weird at first. But after you read the book, I suggest you try to find a therapist with imago training. You can find it online. It seems like your husband does not have time for weekly sessions. There is also something called imago weekends. You get intensive therapy over the course of 2 days. I have heard it is very good. I would imagine weekly therapy is better but I'm sure he gets a wekkend off once in a while!
It is a very positive approach to marriage issues. No bashing or badmouthing allowed. It hinges on improving communication and "getting the love you need" which I think is the title of the book.
Good luck.