User blog comment:Adventuretimegurl123/Betty is a real episode!!!/@comment-5810495-20140208022227

In Wizard City, a magic spell backfires and turns Ice King back into Simon. Now with Finn, Jake and Marceline's help, Simon finds a way to bring his beloved Betty back. Finally reunited with the love of his life, everything is great! There's just one catch... without his magic crown Simon will die.

without his magic crown Simon will die.

So basically the end of the episodes like this: ... and Simon turned back to Ice King. THE END.