Hank sees the light turn yellow again. He sees Connor rub over his "heart". There's that pang of worry, but he realizes then that maybe it's not bad, like Connor said. It's just him thinking. Maybe for fucking once something he's said is sinking in.

"I'll argue to the end of time against you beating yourself up, don't worry. I'll not shut the hell up ever. I owe it to you to be just as annoying."

That yellow light gets another rub with his thumb, a fond one rather than a concerned one, before he walks around him to the door and pushes it open with his shoulder.