John Gaines is only here to work, not spark relationship rumors. "There is integrity behind everything I have built," said the professional trainer. Source: @GainsByGaines/@KristySarah On Thursday, April 23, newly single influencer Kristy Sarah got fans talking when she shared a gym selfie with fitness trainer and model John Gaines. Besides his work as a personal trainer to the stars, Gaines is known for his previous relationship with singer Victoria Monét. The pair met on the set of her music video for "Moment," which was released in February 2020.