Friday marked former First Lady Melania Trump’s 54th birthday, which was made more awkward by the fact that she spent it without her husband — who was in court defending himself from allegations that he covered up payments to women to keep quiet about extramarital affairs with him. Stephanie Grisham, who was chief of staff to the former president’s wife during her time in the White House’s East Wing, said during a Friday interview on CNN that Melania’s absence from the trial proceedings is likely not a coincidence. “I’m sure she’s not happy about it,” Grisham said. “It’s not fun to hear these …