What we saw in this episode is that Boyd has changed only in that he has become much calmer and extremely shrewd. He know knows how to achieve those things he wants - and that definitely includes Ava.
And as we knew would happen - McCready's daughter learns that he is dead - brutally murdered by the Bennetts. This is the excuse good ol' Coover needs to get rid of the person he feels has stolen his Momma's affections from him. We know Raylan will come to the rescue and someone is going to die.
And I'm going to miss the coal company lady - guess she wasn't Dixie Mafia after all.