Board Thread:Questions and Answers/@comment-24977220-20140523222343/@comment-4241330-20141105175253

Plus, it seemed Mordecai finally got over Margaret by the end of I Like You Hi. He really couldn't open to her until like, toward the end of the 4th season. If she comes back now.... Then things would get really awkward. That's for sure.

I guess what would happen is that CJ and Margaret get into a fight. Mordecai has to choose one of them while the other has to be killed or taken by someone/something. But both girls end up being rescued and one of them starts a new relationship in a later episode.