'This' could refer to a few things, and honestly, he hasn't given it much thought. He has given the shoot first, talk later approach a fair number of goes. He's finding the talk first, shoot later approach to be a little less lonely. A little less burdensome.

"M'tired of fighting," he finally admits after a stretch of silence between them with a lick of his lips and a shrug. "I'm just tired, in general, all over. But. When I was alone, and dying," he purses his lips and debates continuing, knowing full well she can't keep up with him - and if she can, she's going to have some questions - but he decides to continue anyway. "The thought that 'I shoulda made more enemies and shot more assholes' di'n't really cross my mind."