OK so as far as I can remember it's from Sam's POV. He and Dean are very drunk and as Sam goes to walk out the room he hears Dean call Cas and tell him that he is in love with him. The next morning, Cas flies over to Bobby's and gives Dean a freshly baked pie and Dean jokingly says he loves Cas for it, having forgotten the previous night's confession. Cas is so deliriously happy that Sam can't bear to tell Cas the truth.

Everything is good until some girl tries to flirt with Dean and Cas, of course, becomes all jealous and possessive. The truth is revealed, Cas acts like a kicked puppy and then runs off for a few weeks. Dean has to try and win him back.