After being cast as Prince Charming, fans noticed that became extremely close to his co-star Camila Cabello. At the time, Camila was still with Shawn Mendes, but now that she’s single again, maybe this on-screen romance will become an off-screen relationship! Until then, it appears Nicholas is single and happy. Currently, he is filming the adaptation of Red, White, and Royal Blue for Amazon Prime.
Source: https://www.distractify.com/p/nicholas-galitzine-girlfriend