Oh Jenni. Hugs from us to you as well. You showed great courage telling him how you feel. That was important for you and for your kids. If he does drink less over the next days, expect it to be really really really rocky. If he has been drinking that much, quitting quickly will be painful and difficult. Please don't feel like the world is coming to an end if he doesn't stop drinking. He may not be ready yet.
Please read about detachment and boundaries. Take care of you and take care of the kids. Support him, but try not to monitor him. For me that is the hardest thing. I became and still am too much the FBI (family bureau of investigation) and that always leads me to info I really didn't need to or want to know.
Keep coming here. There are a lot of longtime members on here that can help with their own experience, strength and hope (ESH)
Hugs