Listen! Love is wanting wellness for the other person. He is making this about him. He is manipulating you and is most certainly having overly-dependence problems himself. He can use the week off to take care of the kids. I hope that you can assert that you need professional treatment. There is a legal word for being held against your will, it is called something like illegal confinement and it is...illegal. This is not a healthy situation. You are an adult. You have every right to put yourself in treatment and that is a healthy thing to do. Sure sounds like he has some issues of his own that need treatment.
Sorry, I don't mince words.
hugs,
live