sailorfailures replied to your photo “Okay so I think this is important. In the manga, Mamoru catches her…”

It’s more or less the same as his line in the JP manga, only slightly rephrased – the important part is the same. He’s still posing it as a question; not sure why the subs chose to translate it so certainly.

Ohh, thank you! That makes more sense now, since there are plenty of people around and he shouldn’t be so sure he didn’t mishear. Thanks for letting me know!