[... A thought gets his expression to soften again just a bit, though, and he reaches down to take one of her hands. Just to play with her fingers.]

... You are free to play with my hair whenever you'd like, as well.
The last time anyone else has was... well -
If you put aside the Wasp shoving me in a chair to brush it for me, it would have been Jean braiding it when we were younger.

It's such a shame no one else seems to want to - is that something you must be friends with others for?