He doesn't let go of Bruce's hand, won't let go until he is blatantly, pointedly, deliberately told to. Might not even let go then, because Clark has so many rules, but if he's honest with himself, he'll bend every one of them until they break for Bruce. Just like Bruce would for him.

"We'll figure it out."

We. They're the goddamn World's Finest. There is no other superhero team in their world, in any world, to match them.

"I love you. I'm not going anywhere. And we'll figure out how to do this."