MonaRoza
The 3cs re alcoholism:-
You did not cause it
You cannot control it
You cannot cure it
Oh I can well believe you are a professional in a good job; you're carrying him. He will however, continue to drag both your own self and your children down with him until you all sink. Women however, are not rehab centres for badly raised men.
Alcoholism as well is not called the "family disease" for nothing and you as well as your children are being profoundly affected by his alcoholism.
What is so scary to you about being without him in your life day to day?. If you could address those fears perhaps you would ultimately see these as groundless and based on your own negative and or self defeating thinking. Alcoholism as well thrives on secrecy so you have done yourself a small but important service by writing about it on here. Time to bust this wide open.
What is more scary to you; being around him for the next 10-15 years tiptoeing around him or living a life without him in it day to day?. How do you think life longer term with this alcoholic is going to pan out; these relationships go one way and that is ever downwards whilst you rearrange the deckchairs and otherwise lurch from one crisis to another. Its never stable in your house is it?.
What do you get out of this relationship?. Are you codependent in this relationship; I would think you are because that state and alcoholism go hand in hand. What did you learn about relationships from your parents, what sort of an example did they show you?. By being with him and tiptoeing around him as you are doing you're basically enabling him to carry on damaging your own self and your kids.
This is NO life for your children to be witness to; a drunkard for a parent will impact them markedly. You have a choice re this man and they do not. Make better choices than the ones you have already made; you cannot rescue and or save him and he does not want your help or support. You are stronger than you think; if you thought nothing was wrong with this you would not have posted.
Do contact Al-anon as they are very helpful to those affected by another person's drinking. I would also consider seeking legal advice re divorce sooner rather than later.