Hi Jess
I know this must be absolute torcher for you and I am very sorry for that. Has he shown you that he can be a responsible adult? Has he shown you that he is changing his life style? What exactly has he shown you? Go with your gut feeling as far as the safety of your darling children go. How long has it been since he passed out while watching your children? Has enough time gone by that you feel you can trust him not to repeat his actions? There are some things that we have to take care of ourselves instead of handing it over to our HP. Follow you intuition.
Zoe