Question: are geralt and yennefer together in the books?
Answer: In both Witcher 3 and the show, Geralt and Yennefer are tied together because of a djinn's spell. During The Last Wish quest in the game, they manage to remove the magic that links them, and afterward, Yennefer still loves Geralt. This shows the djinn's magic had nothing to do with how she felt.