Well your going to have to end up tying him up and Duck taping his mouth that way he has no choice but to listen to you till your done.

Maybe sit him even if you have to tie him (just kidding about tieing him up) and read to him what depression is all about . How could someone say you don't have depression when they don't know what depression is. I feel bad for you cause the most important person you would want to help you through it would be your spouse. I'm sorry you have to deal with that. That would make me even more depressed. You have us if you need to talk we will always be there for you.

Your going to have to sit down and ask him to help you

Maybe you can get him to recall a moment when he was feeling bad. Or like ask him about what upsets him. Maybe you can relate his feeling to yours. Maybe he just never really tried to relate your your feelings and you two have to find a point of relation. Like "When I'm down I feel like *insert sports team* just lost but worse than that. If he truly loves you he'd want to understand you. Maybe talking about something that pains him can help him understand your pain.

Get a new husband