Hi, just been reading your story and it’s an awful situation to be in. Do know that there are other people out there with similar struggles and you are not alone.
In terms of having to live like that under the same roof must be extremely hard not only emotionally but mentally. I would say I’m lucky in one way as my ex bf never used in the house he just disappeard for days / weeks then returned when he felt like it. He still does it now in the sense kids don’t hear anything then he reappears to see them whilst trying to mess with my head. You feel u don’t even know where you are at in your own mind and the manipulation is awful. I’m always drawn back in, but have become stronger in the way im not as easily led now. Its an awful atmosphere to live in when they are like that. No emotion or remorse displayed just sheer cruelty. Do know that’s part of the addiction though. It changes them from the inside.
My advice is you need to clear your mind and have a long hard think. This I imagine you can’t do whilst he is using in the same house as you. I would either escape to collect your thoughts at family/friends house in the hope he may pull himself together or I’d tell him to get out if he is going to continue using everyday.
From experience you can’t pull yourself together or think logically when you are consumed by what is going on in your house. You need space to think, deal with your emotions and feelings. Hopefully resulting in you putting a plan in action to help deal with your situation.
I wish you strength! Take care