My mental health is pretty good right now. However, due my 11 month old son and covid we're living at my dad's house. About 10 years ago my mom cheated on him after 25 years of marriage and tossed my dad aside like nothing. Understandably it left him a deep depression.

I'm not saying he should suck it up and forget it ever happened. I mean he's stuck in the past and blames himself. What makes it worse is that my mom wants to be "friends" with him. She has even came to his house with her new husband and expected it to be fine. In which my dad was okay with on the service at least.

Every time my mom sends him a message, calls him, or tags him in social media my farther is depressed, angry, and drinks more.

I've approached him several times about his mental health. The most recent time he broke down crying and told me he is incredibly lonely. Which after 25 years of marriage who can blame him.

I have pleaded with him to see a therapist and a psychiatrist. Event joining a divorced group. But he refuses to seek help. He's old school and doesn't think a man should express any sadness or hardship. So he expresses it by being a A-hole to everyone in his life except my son. He also drinks the equivalent of 14 beers everyday after work drowning his sorrows.

I really want to help him, but I can't risk my mental health, my wife's and especially not my sons. How do I come to terms that he is most likely never going to seek help and drink himself into a early grave???