Oh, Six help him... this was what the kid wanted to ask him? Gladio was certain there was a hundred others better equipped to answer this question. But he also realised most of those were already off the train.

Gladio gave a low laugh and a slow shake of his head. "That's ah... tough. I don't think something like that's universal. There's no ping moment where you suddenly realise 'they're the one', that's stuff for movies and tv." He lifted his cup to take a drink, realised it was still cold, and sighed. He'd get a fresh one later.

"You're asking how I knew I loved him and not just as a friend?" Gladio asked with a surprisingly gentle smile. "Just to be clear." Because like was something different. Knowing there was more was different. He was curious just what Yugi was really wanting to know.