Living Situation Question

i am the girlfriend of a 27yr old recovering heroin addict.. We currently do not live together as we are only 9months into our relationship but it has been discussed... . recently his parents decided moved to the city we live in to be closer to him for other Court issues. His mother wants him to come live with her after 10 yrs of being in different cities and not living under same roof. As she claims, she is going to his PO, Police and mother all wrapped into one.. She states she will be going thru his room, his stuff and anything else to makes sure he is clean and not using...His mother is very pushy and he doesnt want to upset and disappoint her, therefore saying in time he will move in.. Granted this may change

My fear is that this stress and pressure and living under her roof is liable to drive him to relapsing. i have heard this from a few other addicts that they feel the same way as i am looking at this...

Has anyone had any experience with this or similar situation?

I am new to the drug world but i see the change in him since they have moved up here and im scared of what may happen if stressed or pushed to do this by her... PLEASE HELP
If he chooses to relapse them that's on him. There is always a reason.
If he really wants it then it doesn't matter where he's living.
His monkey...his circus. No one can make him relapse. If HE thinks its a bad choice then HE needs to make that decision for HIMSELF.