Since finding fame as part of S Club 7 in 1999, Tina Barrett has grown from being a pop starlet who lived in the limelight to a strong mother who is protective of her private life. But when we speak to the star, she’s ready to exclusively reveal to OK! the turmoil she’s endured in the past two years over the end of her relationship with Paul Cashmore, star of Channel 4’s Hunted.