At least Clark did not leave France having learned nothing. Raw strength is not news to him, and neither is cosmic ability. That Diana had trained herself into her own relative powers since girlhood had become all too painfully evident, a display of the value of practice combined with metahuman ability. At least he has something to bond with Barry about, besides the occasional race for a coastline.

Clark finds himself looking at what Bruce is looking at, curiousity strong enough, abrupt enough, that he nearly just says: now's fine.

Instead, "I didn't mean to interrupt," which is true, even if he made the active decision to once he'd gotten halfway there. The matter isn't tabled, but he wants to know, "Did you come here a lot, before?"

It's an ambiguous timeframe to ask about. Before tonight. After he left it behind for good. What he knows about Bruce is only a matter of public record, except for the things deliberately kept off record.