hi and welcome.
I would advise you to keep reading. And you might start to get used to the idea that it doesn't make sense. Alcoholism doesn't make sense to a rational mind. The sooner you can accept that it has its own rules (really, there are very typical patterns), the better off you will be.
The first thing to understand is that it is a progressive disease, meaning it will get worse. Her other interests will start to take a backseat to drinking. You would be mistaken to believe that what you have now is as bad as it will get.
Having said that, you must place your focus on yourself and your children, even though it seems like your wife is the one who needs the help.
Al-anon and counseling will be good allies for you.
Welcome.