I am very concerned that he is physically forcing you to stay in the house and taking your phone from you, especially considering that there are children in the house. It seems to me like he is trying to isolate you from everyone but himself and those he approves of, all of whom sound to be active users. Control from someone who is no longer rational due to addiction can be a very dangerous thing, especially when you start doubting yourself. He is manipulating you right now, and you and your children deserve a life free of this.