It's not entirely what she meant, but it's close enough that Rey isn't going to correct Elleru. Her fingers just curl around the other woman's; she finally welcomes herself to relax since her earlier episode.

"Is that a song from your home?" Rey asks, her voice uncharacteristically soft and quiet, careful when she asks because she realizes she doesn't know much about where Elleru comes from -- or even what she is. She appears humanoid enough, but the ears (and her other form) would imply otherwise.