How do I go about that?

I’ve been dealing with PPD and got on medicine and now my husband is telling me his depression is back too.. he gets on his game after work and does not come to bed until late late. He never wants to spend time with us and sometimes tells me I’m harassing him when I go in there with our baby to see what he is up to. How do I go about telling him I feel like he is neglecting our baby and me? I don’t want to upset him anymore than he already is but this is going on five months and I don’t know if I can just try to have a conversation about it with him and him just dismiss it again. How some ways to talk to him about it without making him feel like shit?