The indie rocker, 35, has just got engaged to his stunning Dutch girlfriend Keshia Gerrits, who’s 12 years his junior.The quiet Scotsman, a quarter of one of the world’s biggest bands, popped the question last month to the beauiful brunette, 23, who he has been dating for two years.My insider reveals: “They’re really loved-up and are already planning to get married in a secret London location.“Of course Chris Martin and Gwyneth Paltrow will be there, as will the rest of the band and a selection