Watson and the tech CEO first sparked dating rumours in October 2018, when they were spotted kissing on holiday in Mexico, as per People. It's unclear when they broke up, but the Daily Mail reported that Wallace was seen on a date with actor Alexandra Daddario in April 2019. In an interview with British Vogue that same year, Watson said, "It took me a long time, but I'm very happy [being single]. I call it being self-partnered."