Welcome, gbanon. Glad you found us here at SR. There's a lot of wisdom, strength and hope being shared here, and I hope you find the help you're looking for.
I'd encourage you to read as much as you can here, and don't miss the stickies at the top of the page. It can be so helpful to see how others are coping w/their situations, and that there really is a better day coming. You also might want to check out Alanon; many here have found it a very useful resource.
You're absolutely right that you can't affect his desire for recovery and all you can do is take care of yourself while deciding what path you want to take. Wishing you strength and clarity to carry you forward.