cheerycherry i am in the same position as you, my DH has suffered from depression for years, leading to a 'breakdown' about 2 years ago and him being managed out of his job. Now I am back at work full time, he works 3 days a week and looks after DS3 on the other days. We have thousands of pounds of debt he ran up while he was suffering, and our house is on the market as we are struggling with the debt repayments and mortgage etc etc. Some days he is great, others he just moves from bed to sofa and back again. I had lots of emotional support when he had the breakdown, but it has dried up now - people think he will be over it, like with a physical illness.
I have tried 'nursing' him - looking after him, bringing him drinks, being very solicitous etc, tried nagging/jollying him along to get up and join in with things, and tried just getting on with stuff on my own and letting him join in if he wants to, and the last one is the best for ME, I get less pissed off and stressed, and if he does come to the park or whatever it is a lovely bonus.
I have considered that my life may well be easier as a single parent, as I would just have the 3 DS's to look after, and not him too, but I do still love him even though he drives me mad a lot of the time when he is feeling bad.
Sorry, that was really long and not that helpful, but just wanted to let you know you are not alone