He doesn't blame Reaper for being wary--hell, 76 would probably say the same thing, if their positions were switched, but he does take note of the fact that Reyes isn't immediately springing for his throat.

The shadow step catches him off-guard, however, and he wheels around leveling his gun. It takes a substantial amount of self control not to fire as he reminds himself that inciting violence will render this entire encounter useless. He doesn't want to maintain any illusions that they can work together in the face of a bigger problem, but fighting each other certainly isn't going to help.

"You're not exactly my idea of fun, Reyes."

Isn't that a convenient non-answer.