He stops her with a large hand on her arm.
"Are you alright?"

Looking at the pulse at the side of her neck, the colour of her lips.

He can feel Pam, in his blood, in his bones.
He knows how she feels.
He might even have realized that a good deal of it will be directed at him, even if she still hasn't.

But he needs to make sure that Jemma is going to be okay before he lets her go.