(Basically back along Wolf hated all angels, including Houston, so before he was protective of them, they got into all kinds of arguments
Wolf:I don't need you to aid me dammit!!
Houston:What? You gonna strangle them with their shadow, stab them with "Inner hate"?
Wolf:Your mocking me...
Houston:Shoot them with your vengeance
Wolf:FUCK OFF PIGEON *Vanishes*
Dallas:I get that I won't let him do this, but why do you antagonise him...you know he can kill you right?
Houston:At this point it's a game, if he gives in and attacks me, I win, And he knows that
Dallas:*Pats his head* I haven't been this proud in a long time