Another one here with a mil from hell, when dd was born (2.6 years ago) she turned into a total maniac and lost all control of her precious first born son this of course was all my fault, i wanted to parent my way, feed my way and dh had his own ideas too she didn't like that we didn't want or even need her opinions she turned vile on me and then of course became the victim.
We have had good and bad parts in our relationship, every opportunity she has had to try turn dh against me she has tried, we split up last year following my horrendous untreated depression and awful issues she turned up at our home whilst dh was staying with his aunt to tell me she and her son were going to be bringing my dd up. of course when we resolved our issues and went to relate dh made one last attempt of having her in our lives and she sat and lied to his face about what she had said to me.
Every now and again she will send a text to dh expressing her love for him and dd, we are expecting another child so her texts will become more regular.
Sorry i have sidelined from your thread, i will get to the point.
I have once got to boiling point and confronted her, unfortunately it back fired and despite everything she's done i looked the nasty one, it did involve a lot of shouting. i gained nothing but confirmed i have a temper when pushed this resulted in a text to dh 3 days before our wedding telling him he is making a mistake.
I have now stopped trying to make dh mend things, stopped trying to influence him and i take his decision and support it fully, i think you should do this also.
Try and support your dh as much as possible, you do however need to be focusing on him getting off these drugs
whether a child knows about them or not it is not appropriate for a child to be any where near a drug user.
Got your dh to focus on something else, a goal i.e get off drugs, spend. day a week with ds (drug free). if he realises he has everything he needs with you he may be willing to let go of what is toxic in his life.