It's not about beer. Beer is a fizzy yellow liquid sitting in a glass.
It's about his lack of control over alcohol, and his lousy treatment of you for a long time.
If he was truly willing to work this out, he would've already. You have tried, and it has failed. This is last-ditch quacking, and i think you know that.
How about you sign the papers and worry about WHO you're going to choose to be with later. You don't need to jump from one moving bus onto another. You can stroll around a bit in between, can't you?