onceuponadream, I believe you know what you have to do to protect yourself and your kids. It doesn't have to happen today. You can start making a plan. Adjust your sails and go forward. Perhaps talking with an attorney, it will give you some insight as to what your options might be. It is easiest when the Alcoholic leaves the home, but as we all know, that doesn't always happen.
As his alcoholism progresses, so will his demeanor. I certainly do not want you or your kids to continue to live in the hell that this disease causes. You, are all the kids have right now, and they are counting on you.
Seems what we don't get right now, living in the present, we pay for later, read some of the threads from "Adult Children of Alcoholics." their stories are so powerful. As parents we only have a few short years to get it right for our kids. All my best to you.....