By Charlotte Tutton Celebrity Big Brother star Louis Walsh has refused to apologise for a number of comments on the show that sparked backlash. The X Factor star took aim at his house co-stars as well as celebrities outside of the ITV show across the past three weeks, and he did not hold back. From calling Jedward “vile” to slamming the likes of Ronan Keating and others, he also commented on co-star Fern’s age and appearance regularly while calling her as dull as “wallpaper”. Jedward had slammed Louis and his remarks in a number of social media posts, with a number of stars backing them. They …