Hi Stuck in the Mud,
As others have mentioned here, depression can be a soul destroying mongrel of an illness. Both my husband and I suffer from it, so our home life can be "interesting" at times.
For me, I have realised that sometimes I give up the fight and it is easier for me to stay depressed than to try and fight to get out of it. Thankfully I see reason in the end and try to pull myself out of it.
My Dr. is wonderful, such a help and very understanding. He has actually placed me in hospital a couple of times because I was just about at breaking point. That time in hospital helped me immensely.
My husband dragged me off to the Dr. a few times. It was the best thing he did.
When my husband is depressed, he shuts himself away and does not like me to be near him. I try to encourage him to get out now and then. Sometimes he goes off with his mates to watch movies and have dinner. At first I was really disappointed he did not take me, then I thought as long as he is getting out and enjoying himself that is the best thing.
He would lay down on the couch and watch a lot of sport so I would take some craft, a book or whatever into the room to sit with him and chat during the commercials.
It is really hard to push someone who does not have the energy to help themselves. Eating healthy meals is a good start. Can you get him out of the house for a walk? Exercise and fresh air will do you both good.
Look after yourself in all of this. Would it be possible for you to spend a few days at your Mum's? Maybe some time alone might make him think about life differently. I don't know.
Hope some of this helps!
Wishing you both well, from Mrs. Dools