Prince Harry was hopeful to reunite with his estranged brother, Prince William, when he jetted over to the United Kingdom to visit their ailing father, King Charles, amid his cancer treatments, but his sibling had other priorities. “Families are complicated,” said a palace insider. “They may be a high-profile family, but they still have a lot of the same issues as everyone else.” A former courtier said the Prince of Wales’ “principal concern is his wife”Kate Middleton who is recovering from abdominal surgery and expected to return to public duties sometime after Easter, RadarOnline.com has lea…