Her eyebrows knit together as she tries to parse out exactly what he's saying. Mercenary she gets. Of course. Because Garden is full of mercenaries. Of a fashion. And some other things that work alongside all of that. Pieces of the puzzle, as it were. But the rest of what he says...

Fitness instructor.
Instructing at the dojo.

She has no idea what any of that means. And he says it as though she should know, which... leads her to the conclusion that while he knows her, he doesn't know her. It puts her into an awkward position. Pretend she knows what he's talking about, which leaves her feeling uncomfortable with the notion. After all, if he says anything to her that she shouldn't know about, she'd feel bad.

"I... er," she begins a bit uncertainly. Rinoa shifts, and unsure of what to do with her hands, she weaves them together. And proceeds to fidget. He may be older, but Rinoa is still somewhere in that late seventeen where she's not exactly the best at carrying herself yet. "This might sound kind of silly, but I have no idea what you're talking about. I'm not calling anything you're saying into question, but... Could it be you have the wrong... me?"

...Is that even possible? Rinoa supposes after time compression anything is possible.