Who Is Stephanie Rose Bertram Kylian Mbappe’s Girlfriend Kylian Mbappe is smitten with a new love interest. The talented athlete has recently become romantically involved with a gorgeous girl. It appears affection is blossoming for Mbappe. The sports champion has been seen in public alongside his new love interest. Supporters are excited to find out more about this intriguing new love. It seems like the French athlete has found someone special who has won him over. We'll have to wait and see if this relationship has a future.