DH and I agreed a long time ago that no unsupervised contact with the DC
How will this work if he's staying with family? What if he moves in with MIL/FIL? Do your children currently go visit their grandparents without you? How are you actually going to enforce that statement?
I'd be saying no contact. Supervised? Supervised by who? He's a highly abusive man who throttled his OWN child til he was nearly dead. There is no way on earth he'd be anywhere near my children.
And while I do not condone his behaviour for one second, as long as he's clean I don't believe he'd physically abuse anyone. But the issue is that the personality type is still the personality type.
You sound quite naive. I think the abuse IS his personality. However, he also denied to everyone that he was using when he clearly was. What if he was staying with you and relapsed. What is you were throttled in front of your children for catching or accusing him of using? Or denying him money for a fix?
Plus how do we know he'll stay clean? when he started using again, everyone knew but he swore blind and twice on Sundays he wasn't and turned it into huge fights with the family if they dared to bring it up.
He won't stay clean. He was clean 8 years and chose to restart. He sounds like he didn't get clean through his own rock bottom / choice and isn't taking personal responsibility for his own choices so he'll relapse again. What if one of your kids catch him using and he threatened them into keeping quiet? What if they found his drugs and ingested some?
trust me, I know that I sound like I'm trying to minimise his behaviour. I'm not
Yes you are. You make it sound like you and DH have no personal autonomy in the face of his family. Are they all abusers?
And I don't want him in my house and neither DH nor I plan to let him move in if we can avoid it.
You can avoid it. Its your house. You say no. End of. No. No. He isn't moving in. No he isn't staying a few days. No.
And if he does, we are giving him a very clear deadline and rules etc. But trying to balance what ew want and need with the broader issue is complex. And I'd love to just put my foot down, as would DH, but the issues are complex.
How on earth do you think you'll enforce boundaries with him IN your house when you can't enforce the boundaries that you actually don't want him there, don't trust him, don't like him and don't want him anywhere near your kids.
There is no broader issue that is your issue. Your house. Not anyone else's. Your rules. Your decision.
My aunt came to stay when I was about 6-7, recently clean. Running from her old life. My DMum and DDad gave her a place to stay to help. I overheard many conversations when they thought I was asleep. To me she was young and glamorous, dressing and acting very differently to mum. I ended up in my child brain, looking up to her and wanting to be like her and very nearly going down a similar path when older. Seriously. Do. Not. Do. This. To. Your. Children.
You HAVE to protect them. No one else can. You need to find your backbone and anger. Why are you pussyfooting around his family. Again I suggest perhaps the apple hasn't fallen far from the tree.