Hubby drinks too much (sorry, it's long)

Ever since my hubby started working at a new place, him and his boss drink almost every night. (Hubby and boss were friends before this new business) so anyways, his boss drinks every single night, he admits it and isn't shy about it. Slowly, my husband is starting to drink a little more everyday. It's hard to watch because we have a baby that's going to be here in a little more than a week. He stays late at work a lot and drinks at the shop. It's very frustrating, I don't want to sound like a broken record to him but that's what's happening. I don't know how to talk to him without him telling me "Oh my God, here we go again!" It makes it soo hard to talk to him when he blocks me out.