Go back to the pool you found her in, and build a dwelling there to live with her

You retrace your steps towards Xiarel's home.

"You're going to live out here with me?" she asks.

"Yes," you say. You take a few hours to build a crude lean-to, figuring you can improve it over time.

You mate with Xiarel at the edge of the pool, spear some fish, and cook them over a small fire. Then you sleep.

Over the next week or two, you gradually improve your dwelling, and stock it with game. After two weeks, your family shows up. You explain the situation.

"We'll come visit frequently," they tell you. "But you really should make at least one visit to the village."

A few more days go by.