Sunshine,
Please remember the 3 c's
1. You didn't cause it
2. You can't control it
3. You can't cure it.
The addict has to want to get clean and no matter what we say or do they need to do it. I wish I could just push a button and have my son clean forever but that isn't how it works. You AH needs to hit his bottom before he will get clean.
You are doing what you need to do for you, and one day he will see what he lost. Will he have regrets, no one knows.
Please go to meeting for you, it will help you learn so much more about you, and how to deal with his addicition and with life itself.
Good luck,
Hugs