Hi Tillyxoxo,
Welcome to the Forum.
I’m glad that you have gone back to your Mums, and I really think this is the right thing to do for you. You need to be strong now and don’t answer the phone, he will only manipulate you to see him.
Believe me when I say it would be a life of hell, I live with my addict son and it is not a life I would wish on anyone else.
Keep in touch on here, there are lots of people in a similar situation and they all give good advice.
Take care.
Dx