I’m sorry your going through this, it’s an awful place to be and in my experience a very lonely place. People either turn their back on you or pile on the pressure in my experience.
It’s harder I found if there is nowhere for them to go as the guilt you feel it’s overwhelming but at one point I did kick him out but then as the money dried out I was the only person left.
It didn’t come without it’s struggles my house was raided because he’s was classed as an associate and that led to social services my world for a time was a very lonely and bleak one.
But I think kicking him out was also the wake up call because he did get help and he as of yet fingers crossed hasn’t had a blip 19 months on.
His habit was 18 months in total but that I can honestly say was the longest, loneliest and most painful of my life