An interesting fact about Rock. . . Brandon Sanderson said himself that his favorite member of Bridge Four is Rock, and he loves to write him the way he is
See here.
I think Wayne ruined it for a reason. Try to think about it this way:
Wayne (I think) knows that Wax probably didn't love Steris that much (NOt only that, but he'd still been getting over his last girl)
HE ruined their wedding, because he believed that his best friend might not be happy with it.
THen, later on, when Wax went ot propose to Steris (4 real this time)
Wayne tells Marasi to stay out of the way for a moment, to give his friends some space.
Wax truely loves Steris by the end of the book, and it seems like Wayne notices it. He seemed pretty ready the next time for Steris and Wac to get married.
Anyway... I like to read about Wayne. I, if i met him in person, do not believe that i still would like him. On this note, I am on kind of equal grounds between loving Wayne and disliking him.