Selena Quintanilla’s untimely death, the endless love between the Queen of Tejano music and her husband, Chris Pérez, is still alive and well.“I’ve never had the kind of love that I had with Selena,” Pérez, 51, told The Post of his late wife, who was gunned down at 23 by the president of her fan club, Yolanda Saldívar, in March 1995.“[Selena’s] way of being made me realize the power in being vulnerable,” the Grammy-award winning songwriter and guitar player said.