This is the kind of couple where bullets figure prominently in the story of their romance. Where "war buddy" and "significant other" are synonyms. If you harm either one of them, the survivor will kill you as surely as the sun rises. Their mere presence increases the chance of a Back-to-Back Badasses scene to nearly 100%. They may also bicker or flirt in the middle of a fight, much to the confusion or consternation of their opponents.