NYC Mayor Zohran Mamdani’s wife Rama Duwaji ditched America’s 250th anniversary, jetting off this week for an Islamic “spiritual wellness” retreat on the Spanish resort island of Mallorca ahead of the patriotic celebration, The Post has learned. The Dallas-raised, Dubai-educated, Syrian-American artist – who has a long history of bashing the US — was spotted at Newark International Airport on Monday, boarding an eight-hour flight to Palma, Mallorca’s capital city in the Western Mediterranean. She was heading to a sold-out retreat run by The Women’s Sanctuary. The 29-year-old illustrator and ceramist is the for-profit’s “artist in residence” and among the...