Husband says he does not trust me.

So I’m struggling and could use some advice. My husband struggles with his mental health. He can get so depressed for days and I end up struggling to help him. He gets annoyed with my every move. Lately things have been worse. Today he left the house for hours and would not tell me where he was (just went for beers). It was hard for me because when he left I felt he should not be driving in his emotional state. I had a panic attack I was so scared and he turned his phone off too. So tonight when he came home he said he does not think I can handle his depression. He is alone and does not trust me with his emotions. Now to be fair when we first got married and I knew nothing about his depression, I reached out to my support group. I told them how he was acting. He is so upset by it still that he says he might never trust me again to talk about this. I’m feeling overwhelmed. His mom is my biggest support and I have talked to her when things seem really dark. I trust that’s he will never say anything either. I also told one other friend my husband struggles with depression. I have so much guilt over that. I’n the moment talking to them helps because I don’t feel alone but if he ever found out it would push him far away. Starting to feel like our marriage is struggling.