Jodie Prenger proved, once again, what an amazing talent she is as she brought Willy Russell’s 1980s heroine Shirley Valentine to life at the New Alex Theatre last night in a one women tour de force. Leaving a note on a post-it on the fridge, explaining that she had ‘gone to Greece, be back in two weeks’, Shirley Valentine has proved to be one of Willy Russell’s most enduring and beloved characters. Shirley is a bored surbuban housewife who feels that life, and all it has to offer, has passed her by at the age of 42. Her kids are grown up, and she has grown apart from her husband…