Depression affecting relationship

I’ve been really depressed lately and I’ve been ranting my problems out to my boyfriend and he’s had enough. I feel like our relationship will end because I can’t make myself happy. He says when I’m depressed he’s depressed and I can see it. I don’t know what to do! I love him a lot and he says he doesn’t want to break up but I feel as if he does. I need to change myself or at least make it to where I’m not depressed around him. Please help me. We’ve been together for 7 months.