Kate couldn't figure JJ out. One minute she was friendly and welcoming, and the next she was staring into the distance.

One minute she shared, the next minute she hid away.

And on the way home...Tortured. Last year.

PTSD. Kate could read the warning signs. She'd worked with too many people—women—to miss it.

The BAU didn't notice...didn't want to notice?

So Kate kept quiet.

She left it at the office, went home to her family.

But as the day turned to dawn...and noon...and night...she thought of JJ. And wondered.