Please call the National Domestic Violence hotline and ask for some help that's close to where you live. They can help you and your kids get out and give you a place to stay while you get back on your feet.
1.800.799.SAFE (7233) 1.800.787.3224 (TTY)
Anonymous & Confidential Help 24/7
National Domestic Violence Hotline
It is NOT normal for someone to keep their partner prisonner in their own home, whether they are addicted or not. This is abuse.
I know you're not worried that he'll hurt you, but abuse usually escalates, and before you know it, physical abuse comes into play.
I used to think that my XAH would never hurt me. Sure, he drank and snorted coke, but when he was violent, it was towards himself (he used to self-mutilate) or he would throw things. Well, little did I know that his addiction + his fear of losing his family = escalating violence. He ended up threatening not to let me leave and to take my daughter from me. So I ran away, taking my baby girl with me.
Please consider calling the hotline (when you have a phone) and getting some advice.
YES, it is normal to want to get away from someone who is relapsing, especially when it threatens your own recovery.