I'd bet that you will see your husband in that book, very very clearly.
My $.02 is that it is good that your sons have given up on their father right now. They may want to rebuild a relationship with him later, but keeping them out of range of the stupidity is for the best right now.
Close the door if you want, leave it open if you want, vow to reopen or leave it closed if you want. It's all up to you, babe.