Well, the descriptions were good, and there were definitely pretty nice moments, but your story is pretty hard to follow. There doesn't seem to be good transitions between the different parts, and so it doesn't make a smooth reading.
I know it's supposed to show different pairings in different scenarios, but maybe a bit more attention should be paid to how each of them is presented? Particularly when they are set after canon, it leaves too much to the imagination of the reader.

Oh, I loved it! All of them!
Thanks for sharing with us!