Go and take the children with you. He has his drugs and his immaturity. That is more than enough for one woman.
I often feel like I want to - not that I could
Sounds like he is the main stress of the situation, perhaps he;s the one that needs to leave and things might get better for you.
You can't darling .. You got to care for the kids there helpless without you .. Let there love bring you thro xx
If your kids are babies and he's a drug user... then take them with you (I did)
and yes, I've felt that way before.