If your H is using drugs again that issue has to be addressed before ANY DB principle can work. If he is using methamphetamine that would explain the anger and hostility. As I said before, legal separation is not divorce. With someone using drugs this might be wise. They are unpredictable. Legal separation can sometimes be used as a tool to 'wake someone up' and really see the seriousness of a situation without the drastic step of divorce. Do a search on legal separation and when and why it is used. You'll find that in there someplace. Perhaps, in addition to financial and child custody considerations, you can use this to confront H with his drug problem and convince him to seek help. As for Mom's advice, she doesn't want to see you hurt so she says what she does. But it's YOUR marriage and your problem, so you must ultimately decide what to do. Standing for a marriage is very difficult and not for the faint of heart, but it is worth the effort. You must pray for your husband. If YOU don't, who will?
David
The fires of true love can never be quenched, because the source of its flame is God Himself! - Shulamith