Welcome MyBetterWorld!!
If he calls you can avoid answering the phone.
You can change your number.
You can delete the messages without reading them.
he texts constantly about the "hell that I put him in"
He put HIMSELF in that hell. You have given him a lot of chances already to get his act together. Unfortunately he has to wake up and be fed up with his life, by himself.
If you don't mind me asking , do you have a therapist? I have one and she has helped me "Zoom out" and realize why I feel guilty when I am doing the bare basics to take care of myself. Alanon helps many people, too, to realize:
-you can't cure him
-you can't control him
-you didn't cause his addiction
Thank you for sharing your story. We all get how it feels. But you are not powerless and certainly you are not alone, here we are rooting for you, and for your peace. You are worth it! thanks for getting your daughters out of his madness. You are making lots of progress - progress, not perfection. Perhaps losing you altogether is what motivates him to recover? stay strong.