By Jasmine Allday EastEnders aired a surprise return for Karen Taylor this evening – just days after she exited Walford for good. Karen (played by Lorraine Stanley) was exposed by her son and Phil Mitchell for being behind the kidnap of Albie and as a result, she quickly decided to make a beeline for Spain alongside Mitch and her kids. Keanu was left reeling by her exit, but refused to come clean that he had played a big part in it – with the secrets definitely not staying that way for longer. Tonight, as Bernie struggled all alone in the flat on Christmas enjoying a tin of sweets, she was soo…