*hugs hugs hugs and more hugs*

that doesnt sound like fun at all. I know how you feel - I've had a REALLY hard time especially the past few days. I've pratically relied on my bf. If he were to desert me I'd lose hope altogether.

and it's not fair - it's so hard to try sometimes. It's so hard to keep going.

I can see where they're coming from - if you were watching someone going through what you're going through.... has your bf had depression before? ... they can't SEE the mental effort your putting in or trying to put in. And if you say things that sound like you're giving up they can get frustrated too.
that's not to say it's the right way for him to act but, it makes sense that it could get overwhelming.

Maybe, try talking to him about it. It's really all you can do. The decision has to come from him, but at lesat make sure he knows how hard you're trying, and how much you do care. Tell him it gets hard.

Also , maybe talk to him about how he's coping with your depression. If there are ways you could help him cope with you being so sad, stuff like that. Keep in mind that it's not your fault, any of this.

Keep trying
I know it's hard
*hugs*