Nothing could replace the real thing...
Emma and Sean developed crushes on each other in the Season 1 episode Eye of the Beholder. They began dating in Friday Night, but broke up in Under Pressure, when Sean pushed Emma to the ground while she was trying to break up a fight between him and Jimmy. They got back together in White Wedding (2), but broke up again in the Season 3 episode Gangsta, Gangsta. When Sean returns from Wasaga Beach in Season 6, the two rekindle their love, but it ends in Don't You Want Me (2) when Sean leaves for the army. In Everything She Wants, Sean appears one last time to say goodbye to Emma and her family before he is shipped off to Afghanistan, and they take their final picture together.