A former senior adviser to Melania Trump says she thinks the former First Lady’s marriage to Donald Trump is in trouble, based on what she sees as a change in his behavior. In a post to X, Stephanie Winston Wolkoff, the author of the tell-all “Melania and Me,” said that perception is everything to the Trump family, “so Trump’s lack of ‘chivalry’ towards Melania is quite a ‘tell.'” “Chivalry for Donald was waiting for Melania to go first & ensuring she walked by his side. He’s been doing neither recently. Take a [look],” Wolkoff wrote alongside a video comparing past footage of Trump placing hi…