Also, just doesn't work as he wants to drink every other night and we have 4 kids to take care.
you do realize that this is a bigger problem than who he is drinking with
there are four children for him to be responsible for when he is not working
he needs to make time for the children and you well before he considers going out for any reason
do you get nights out on your own each week?
do you have date night each week?
forget about that woman - get things sorted with your husband