The identity of Xavier Swinton Byrne’s girlfriend and other details are unclear. He does not have an active social networking persona. He wants to avoid the paparazzi and the media, so the facts of his personal life remain secret to everyone.
It seems that the celebrity son, Xavier, is presently single and not involved in any romantic relationships. He could be preoccupied with his professional work at the moment.
Honor Swinton Byrne, his twin sister, similarly keeps a lot of her personal information private. Like her brother, she keeps her relationship status from the media by speaking less about it.
She appears to be currently leading a single life as well. She is more concerned with pursuing her career and profession than she is with spending quality time dating someone.