Who does Cosimo meet at the Spaniard community that answers his need for love? What happens between them?

A young girl sitting apart from the others, and unlike them, in that her eyes are the color of periwinkles, and she is much more adept at moving about in the trees than the others. The two are entranced by one another at first glance, and play games in the trees until their proximity entices them at last to kiss. Cosimo is amazed, and Ursula, the blue-eyed girl, is not amazed at all.