West End superstar Alfie Boe appears to have brought the curtain down on his 16-year marriage by putting the family home up for sale.The singer, dubbed the People's Tenor, only moved into the glorious Cotswold property two years ago, having previously been based in America.Now, the 300-year-old grade II listed house is available for a cool £2.5 million.Its appearance on the market comes less than a month after reports that Boe had joined a high-end dating app after splitting with his American