Struggling with My Boyfriend and Depression

To be honest, in my opinion and experience, I think a break would be beneficial. I was in a relationship similar to that, and we ended up hurting each other a lot because our mental states weren't ready for a serious relationship such as that. If you do decide on a break, be sure to clarify that it's for the well-being of both of you, that it isn't because you two need to improve on your own in your own ways– that doesn't mean you don't have to be in each other's lives though!