The good news is that as you recover, becoming stronger emotionally and are able to let go of the anger, your daughters will see that.
They won't see you stuck in the muck that you are working out of.
You will teach them good healthy relationship skills...you will teach them how to love, and detach. You will teach them about this disease that their father suffers from.
This certainly must be painful right now...I know how it hurts, but, it can be the touchstone to greater growth.