Hi so sorry you are going through this and what you went through with your husband.
I would use this time hes in rehab to get your confidence back and do things for you to make yourself feel better from all this stress.
When your husband is due out of rehab I would set boundaries of what you want, just make sure you keep to them.
I hope your husband can sort his drug problem out for the sake of your marriage.
Clear your mind then start to think about what you really want in life.
Take care x x