You know it's not quacking when they are actually RECOVERING. From what I understand he isn't well, he continues to drink and harbors a lot of anger. I understand wanting to BELIEVE he means what he says, but unfortunately, it sounds like a lot of self-pity, guilt-tripping and manipulation.
And co-dependent love--complete with happy ending--is a staple of fiction. It's fiction, because it is a pleasant fantasy. It's as real as Cinderella and the prince.