Mr Paul, 41, is the founder of management company Klutch Sports Group, which represents basketball stars including LeBron James, who plays for Los Angeles Lakers.
Adele and Mr Paul went public with their romance in July 2021 while attending an NBA game together after reportedly meeting at a birthday party of a mutual friend.
She told Rolling Stone magazine it was the most “incredible, open-hearted, easiest” relationship she had ever been in, adding: “He’s just hilarious, so funny, and very, very smart. It’s quite incredible watching him do what he does.”
In an interview with Elle magazine in August last year, she denied they were married following speculation, but conceded: “I’ve never been in love like this. I’m obsessed with him. I definitely want more kids.”
Rich addressed rumours about their relationship last month and spoke about how the pair had “helped each other” during their time together.