"But he's used to taking care of himself on the other side.

Oh, it's this side, now!" "So it is! How strange that seems! It's actually Europe.

But as long as we're at sea, we can't realize it.

Don't you hate to have experiences slip through your fingers ?" "I don't know.

A girl doesn't have many experiences of her own; they're always other people's." This affected Burnamy as so profound that he did not question its truth.
He only suggested, "Well; sometimes they make other people have the experiences." Whether Miss Triscoe decided that this was too intimate or not she left the question.