Rap legend Bun B and his wife, Queenie, the Houston supercouple whose Trill Burgers won Good Morning America’s award for best burger spot in America, have been married for more than twenty years. That means two decades of Valentine’s Day celebrations and gifts—some extravagant, some sweet, and some, as Bun says, “that can’t be talked about.”There was that time he filled her room with hundreds of roses. “It was a grand gesture, and she appreciated it,” says Bun, whose conversation regularly veers back to the many things he loves about Queenie. “But then she was sad they were all going to die. So she took the leftover roses to the nursing home and gave them to elderly people. . . . She’s a deeply thoughtful person.”“And now he’s not…