My Q keeps saying come home

First of all I have no intention of returning home unless husband Q actually begins any self work. I left with my son for the fifth time this year and we have stayed gone going on two months. I told my Q we would not come back if he is still drinking. I have loved him for 15 years so of course a part of me was praying for him to get better but he hasn’t. He keeps saying come home and I’ll get sober. How can I explain to him in a way a dumb dumb might understand his only chance is getting sober first we do not come home otherwise his little pea brain is not processing this information and I would like him to realize the outcome if he doesn’t get help. Mostly so he doesn’t live his life with regret I feel good about where I’m at