Was this flirting, still, or was this just goofing off? Did he friend-zone her already or was this an ongoing investigation on his part? Things that Joey was curious about as Jesse responded only to splash her again and slip beneath the surface to avoid a retaliatory splash.
Joey was craftier than to stand there and wait it out. She slipped beneath the surface, too, swimming forward a little ways toward him before resurfacing and when he came up she had a much better shot when she gave her returned splash. "Rude," she deadpanned, the grin on her face betraying the mock seriousness in her tone.