<p>There are some things in life you'll never forget - or forgive - that mean flinging your plum suede kitten heels into a bag and leaving without a backward glance...and most of your wardrobe. For Rosamund it was the sight of her boyfriend making love to her swine of a sister in front of the fridge. She's nowhere to go but the Welsh Marches and her old schoolfriend Gloria - after all, she could hardly run home to mum. But if Ros thought the City...