Forever together

Cole and Arianna were always pushed together since they were 10 by their parents. Arianna always wondered why but always shrugged it off. Cole is a shy boy while Arianna was friendly. They didn't mix and Cole was always left alone while Arianna always played with the other kids. One day when Cole moves away then comes back as a different person. He is now arrogant, conceited and is now a player with all the girls falling at his feet. What happens when their parents tell them they are to be married? How can Arianna manage when Cole teases her to no extent? And how can Cole cope when his feelings for Arianna are coming back?