I really need support.

I just had a baby. She's almost two months old. Her father was in jail for her birth and got out when she was month old. He isn't allowed to see her until we get a court order because of his probation officer and he has a lot of restrictions as well. Because of this he talks about suicide all the time. It hurts me that he would be selfish and leave us. I can't talk to anyone in my family about this because it's obviously bad on his part. But I just don't know what to do. We argue constantly and he is so depressed we can't have normal conversations without getting angry. I just want him to be okay again. But I'm scared he will kill him self. Any advice would help thanks😢😭💔💔💔