Hi Nat123,
Welcome to the Forum, it’s a great place to share your story and chat to people who are in the same situation.
My Son is an addict, Alcohol and Cocaine, he’s doing ok at the moment but put up with what you have been through for at least 10 years, he’s 29 now.
I think you have done the right thing for you, I can appreciate that it is very hard, but as you said it is like living in hell, and when it starts affecting your life you have to do it for you.
It sounds as if you need some professional advice about the house and mortgage, do you have a local Citizens Advice near you? Or some Solicitors do free 1/2 hours advice. Are you able to have the dogs where you have moved to?
The Icarus Trust is another place you could talk to, they would know about these situations.
Don’t worry about ranting on here, I think it’s a good place that you can write down exactly how you are feeling and i think that helps.
Keep in touch on here, take one day at a time and most importantly look after yourself first.
Take care
Dx