The warm look is chased by an eyeroll because he's being stubborn. He could wait for her! She said she would be back soon! She doesn't push, however, because she can see that Sofia's winding down on the bottle and will be done soon enough.

"I get it, at least. Why you're so stubborn about sharing her. I don't want to let go of her." Tiny little heater tucked against her, fingers idly brushing her collarbone as she opens and closes her fist around the necklace.

Sofia is so... perfect. Jyn wants to hold on for as long as possible.