what would you do in this situation?

ok, here is the background, boyfriend has a drinking problem that he wont acknowledge. We bought a cottage together next to his father and brothers. (3 different cottages). Now when we go to the cottage, he goes next door to one of the cottages and hangs out all day drinking. He comes home for dinner and then goes back to watch tv and drink. He stumbles in around 1 or 2 am. Because of this and his unwillingness to change, we had a big fight, and I put the cottage up for sale in February. The cottage has still not sold. Since February, I have been refusing to go up North with him, and since then, our relationship has gotten better. I started to almost trust him again. We have been together for a year and a half, are engaged, and working on having a child.

Ok, now to this week. His company has no work, so he quit to start at a new company. For his week off, he decided to drink all week, including getting drunk on a Tuesday and Thursday. I approached him on the Thursday about his drinking and he got all mad at me, but we worked it out. Friday night we go up North so he can see his dad for Father's day. We are at his dad's when he says, he will come home after his beer at 11 pm. He stumbles in at 1: 15 and I am pissed. I tell him I am mad, and he should apologize. He refuses to apologize or discuss it. I get mad and tell him to sleep in the other room. He goes there, and I follow and attempt to get him to talk to me. He continues to ignore me. I then tell him that if he does not roll over and talk to me, that I was walking out, and that the relationship was over. He still would not turn over and talk. So I get up and get a full glass of cold water and pour it on his face. He of course gets mad at me, and is now irate. He proceeds to the bathroom, and I follow. He then pushes me (not shoving, just pushing back on me) so he can close the bathroom door. I open the door and he is at his wits end. He then says to me that I had wrecked everything, that it was over. To which I say, geeze, didn't I already say that? So he then grabs a beer from the fridge and goes outside. His daughter is 13 and he gets her one week at a time, she just arrived that day, and was sick to her stomach. She had been on a bike trip and flew over the handlebars onto the ground. So at 11 pm, she wanted to go back to our cottage to bed. He chose to stay at his parents drinking, rather than return to the cottage to keep an eye on his daughter. That is why I left his parents house and returned to the cottage. When he arrived back at the cottage at 1:15, he did not even go in and check on her. That was one of the things that made me really mad, was his neglect of his daughter. So after I confront him and he grabs his beer and goes outside, I go over to his parent's house. While I am gone, he grabs his daughter, his and her backs, and storms off to his brother's house. I spent the night and drove back to my house today.

So again the question, what would you do in this situation? He definately has a drinking problem, he had slowed it down, but now is out of control again. He won't discuss it, and does inconsiderate things, and says that I am controlling when I get mad. So for example, I was being controlling by wanting him to come home with us. I am at my wits end with all this, and need some comments and opinions. Thanks muchly for answering. I really appreciate honest feedback.