Jesse St. James had better bust out an entire book of apologies tomorrow.

Jonathan Groff returns to Glee this week and Rachel is none too pleased about it, at least from the looks of this sneak preview. Can he possibly make up for his past behavior?

You wouldn't think so, but then he utters a certain word that seems to get his foot in the door. It will be interesting to see where things stand by the end of Groff's three-episode arc.

Watch the clip from "Prom Queen" and sound off in the comments below:

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