I'm not particularly good with curses, but I can you a strand of his hair or something if you need? Just... try not to go too overboard. The other passengers tend to get a bit tetchy about this kind of stuff. Trust me, I'm speaking from experience.

[They look away, a light blush tinging their cheeks.]

And, uh. Sorry if I made you uncomfortable earlier. It was the only thing I could think of to get him to lay off; I'm pretty sure flirting with somebody's fiance means you'll have to duel one of them on this world, and he didn't look like the type who'd be willing to scrap.