So I told dh to get sober or get out last Wed. He finished his bottle Wed night. Thurs he was sober. Fri he had a small bottle, much less than normal. Sat was a few beers a friend brought. Fri/sat he didn't seem to even get drunk it was so much less than "normal".
What happened to your boundary of sober or out when he drank on Friday then again on Saturday??
I think long before you worry about HIS boredome you need to first focus on YOUR boundaries and sticking to them.