Alexandra Burke has given fans a rare insight into her relationship with footballer Angus MacDonald.MORE: Alexandra Burke shows off flawless curves in sizzling fitness snapTaking to her Instagram Stories on Sunday, the former X Factor winner shared a post from their romantic picnic at the park with one of her pet dogs. "Picnic in the park [red heart emoji]," she simply gushed.WATCH: Home Sweet Home with Alexandra BurkeThe short video saw the couple clink champagne glasses.