The beginning of this episode made my worst fears come true. Beckett having amnesia and doesn't remember, then the writers did the same thing they did with Bones; too messed up emotionally to be romantically involved. It seemd to me that everything was back to square one. Beckett and Castle dancing around each other episode by episode.
But things changed right at the end that made my hopes come back. Beckett DOES remember and that gives a new perspective on how she treated Castle during this episode.
I still can hope, that the producers are willing to go towards a real relationship between Castle and Beckett somewhere in the future. Unfortunatly the track record for crime dramas in that department is not good. Too often it isn't done like in JAG, NCIS and Bones or it is done poorly like in Without a Trace.
I will keep my fingers crossed and keep watching.