Valentine-Iforgethenameoftheotherguy thing is no more. Shining and Cadence never met formally, and never fell in love. Upon Twilight becoming a princess, she met Cadence and immediately struck up a relationship with the princess, who sensed Twilights Crush. Within just a few years, they were married.
Call me trash, but I am secretly a huge fan of TwiDence. Actually, no, don’t.