Patterns are difficult to change and I can't see Deacon changing. Who needs a person in their life who can't be depended upon...........over and over again? Deacon is not emotionally stable. If things upset him, we know what he does. Either he pitches a baby fit and runs away or goes on a drunken tirade. He may cry crockadile tears later, but in the moment, he doesn't care who he hurts. He keeps hurting the people he claims to love and then says he's sorry, but we know he isn't, because he keeps doing it.
I'm not sure what more Deacon has to do to make Rayna understand who he is. He has shown her. If she takes a chance again, it's at her own risk. Poor kid. I don't feel this need for Rayna to be with Deacon, because he is toxic. Oh well, had to get that out. lol Teddy was right in the very beginning when he said Deacon was not safe to be around the kids.