Delta Goodrem has been too “busy” to plan her “perfect” wedding. The 39-year-old singer got engaged to her longtime love Matthew Copley last year, and her life has been so hectic, she and her fiancé are yet to sit down and discuss their special day. She told Australia’s WHO magazine: “Don’t ask about the wedding. “Things have been very busy, but a great kind of busy – the kind where I’ve never been happier. “It’s about planning the day in a way that everyone can feel like they are invited, but we’ll keep on the path of discovering what makes the perfect day for us.” The pair had been dating si…