Tas was worried about Tris. Seeing her jump, he knew she wasn't handing it well. Maybe like a part of him was missing then a part of her was missing too. It was more of a part of her than it was of him. Maybe he needed to do something more for her.
When she came to his lap, he began to run his fingers through her hair. He wanted to make her feel better. He didn't know how. He wished he could use magic to help but that was the problem, wasn't it?
"How are you feeling?" he asked, hating how stupid that question was.