Rebecca Adlington and her boyfriend Andrew Parsons have been dating for two years, but fans were delighted over the weekend when the Olympic swimmer shared a rare photo of them together."Date night @andrewparsons5," she captioned the snap, which sees them both smile at the camera whilst out and about.MORE: Rebecca Adlington reveals she found out ex-husband Harry Needs was bisexual last year Rebecca and Andrew headed out on a date on SaturdayFans rushed to comment on the picture, with one