christina dropped in at the bookies soon after peter barlow's (chris gascoyne) return to weatherfield. peter's employee at the bookies, leanne battersby (jane danson), who also happened to be peter's girlfriend, believed he'd spent his time away in rehab, but christina said that he'd left rehab early to spend time with a mate on her father's yacht in the mediterranean, and that she'd had a fling with him. christina had no idea of leanne's existence, and seemed more amused than annoyed at being kept in the dark by peter. when peter attempted to deny their affair, christina told him to grow up, and quickly departed.