It took more than 20 break-ups for Melissa Meagher to realise her six-year on-and-off relationship with her ex had to end for good. With each make-up and break-up, the pair would go through the same dips and troughs, the same tangled transition from honeymoon period to war zone. Only it was causing the 47-year-old Brisbane mother-of-two increasing amounts of angst – the friends abandoning her, the instability, and that throbbing sense of loneliness that envelopes you when you