Love across the ages

Big age-gap relationships are in the news again this week. Last weekend saw the seemingly rather happy nuptials between Jerry Hall and Rupert Murdoch (a 25 year gap; he's 84, she's 59). Whilst Cheryl Fernandez-Versini and Liam Payne (10 year gap, she's 32, he's 22) are feeding a frenzy of social media gossip, saucy style. Celebritydom has a fair sprinkling of  …