You and Sokka were engaged, and you are from the Western Water Tribe like Sokka...but Sokka never liked you because he only got engaged to you at the behest of his mother...and when he began his journey with Katara and Aang, you came with them...and you saw how he liked Suki. ...and when you arrived at the Northern Water Tribe... you saw his intense admiration for Yui... despite his knowledge that Yui was engaged to a man...