[Reid's eyes are soft, but he averts them, once again his thoughts distracting him from putting in the effort for eye contact.] Mio... there's no standard reaction to trauma or grief. It's... well, even just talking from personal experience, it's very common to stop feeling things you would normally feel if you're in an extreme situation like that. It's a coping mechanism--your mind is protecting itself from completely breaking down by putting aside how you feel for later.

[Wait eye contact that's a thing he should be doing

He'll quickly make it again.]

Now that you're in a less stressful environment, it'll probably start filtering to the surface so you can deal with it now that you're not fighting for your life.