He's just scared. Tommy's abandonment issues ran so damn deep at this point. But he wants to laugh at the question. At least he's now old enough, and honest enough, to admit it.

"I've always been the scared twin, Billy. I'm just a lot better than you at hiding it. Have been for a long time. My powers are literally about running away. Always away, because there wasn't things to run to. And when there was..."

And when there was he'd made it fucking awkward time and time again with David. Then he'd been here and lost things all over again, the universe lashing out maybe.

"I may be bigger in some ways, and stronger, but I'm not the one the universe wants. Maybe you're afraid of what you'll become someday, but I've been afraid of what I am since I was old enough to realize I-"

Wasn't what his parents wanted. That they'd never want something like him. Someone like him.

"I've never been that strong. And I'm scared a lot of the time. Just not over the same things other people are."