She didn't really mean that he's jealous of her attention with Zephyr... more the attention that he thinks Zephyr's garnered from her. But she doesn't bother making that distinction. It was just a joke, either way.

"I know how to use a phone," she protests, though that's probably not specifically what he was talking about. Still, she crosses her arms in a playful mockery of being offended. "If you've managed to figure it out, I'm sure that I can, too."