(((( Hugs))))
I'm so sorry you are having to go through this. I know what it is like to be married to a drug addict because I'm married to one. The lies, the using, the mistrust, it's enough to ruin any marriage.
Focus on taking care of you. Focus on your needs and your recovery. Yes, we marry for better or worse but drug addiction is not part of that equation. It's one thing to stand beside someone if they are willing to get help and are willing to be in active recovery but it's another thing when all they care about is their next fix.
Please post here as much as you can, this board is my sanity
There are a lot of wise people on this board and I'm sure some of them will chime in too