There's definitely something weirdly normal about this, maybe just the fact that they've found something that's specifically about being on a spaceship but isn't horrifying. (Obviously it should worry her, too, but she listed off the traits of the last couple guys she went out with and put 'vampire' next to them and said 'eh'.)

She turns a little so she's not watching quite so much out the corner of her eye and lifts a brow. It's a prompting expression rather than a warning one, but he may have noticed by now that with her there's at least some chance of mockery pretty much at all times. "Yeah?"