You know, I believe it. But it's kinda sad that you call this trying.

Anyway, if you went under, I'd wait for you.

[Josuke shrugs and marches past in the direction of the waves.]

You'd have to come back up sometime, anyway. Otherwise, my chum, you'd be chum to some shark! And that wouldn't be very cool.

[The grin he flashes back at her past a hanging mop of hair is...shameless.]