By Paige Freshwater When taking a DNA test, most people expect to reconnect with a long-lost second cousin at most – not uncover a deep, dark family secret. But that’s exactly what happened to one woman who came to learn all about her grandad’s secret life – and the utter heartache he brought upon her grandma. According to her grandma, her grandad died when her father was just four-years-old, meaning she never met him and her dad doesn’t have many memories of the man. But, through the DNA test results, she came to learn he’d actually run away to start a new life with another woman, going on to…