Britney Spears has mixed feelings about her estranged dad as he continues to fight serious health battles. Over the past few years, Jamie, 72, has experienced colon issues, kidney problems and he recently had one of his legs amputated following a life-threatening infection. “She’s sad for him but it’s not that simple to just forgive and forget the way he destroyed her life,” a source spilled to a news outlet. “It’s an extremely complicated and painful situation.” And according to the source, the situation became even more painful for the Princess of Pop, 42, when her distant sons — Sean Presto…
