Lewis, I would just like to remind you that alcoholism is a progressive disease.
She doesn't drink and drive w/the kids in the car--yet.
She isn't abusive until later at night--yet.
Things don't seem too bad to you--yet.
But the unfortunate thing is, you don't get a timeline to look ahead on and go "OK, on March 16th, she WILL decide to drink and drive and she will kill one of the kids and an innocent person driving another car, so the day before THAT is when I'll need to take action."
It's not that bad until it suddenly IS that bad. You get no advance warning when it's going to happen. And the damage may be repairable and it may not.