Selena Gomez has denied dating John F Kennedy’s only grandson. The singer and actress, 31, who is seeing record producer Benny Blanco, 36, hit out after a fan account said “a few tabloids” had reported she was an item with John Schlossberg, 31, between 2020 and ’21. She said on Instagram about the gossip: “Never met this human sorry.” John has not publicly responded to the rumour and it’s unclear if he was dating someone from 2020 to 2021, when Selena was apparently single. Selena and Benny have been an item since last summer but the singer did not reveal their romance until December 2023. She…