"Luna, are you hitting on me?"

lol second pony to ask that this chapter. And that's a yes from both aye?
Cheese is taking it far slower than Luna is

The intro to this chapter was great. There's been a lot of good world-building and I think I enjoyed that the most. You did great work on it and it was highly engaging.
I did not see the Discord and Celestia scene coming. But it was enjoyable and added to the background and worldbuilding that is going on. Is this the first time you have shown them both together? Because I feel like that's their establishing scene to show them as a couple. You did a pretty good job of it.
I found it funny that Celestia had no idea her sister wanted her student.
The hospital stuff is rough. Getting some interesting insights into poor Starburst. Even with everything, I do still have this image in my mind... https://derpibooru.org/images/2245688?q=starlight+glimmer%2C+sunburst

The other big kick I got was the cutie mark on the moon. We have quickly gone from Luna letting Twilight know she likes her to and now they are sharing a bed
For real though, after having many nights cuddles with your special someone... loosing that does make nights much harder and I think Twilight might be finding it nice, even if a bit weird to have Luna there instead. Luna's made her position clear. For Twilight, I bet she'll have the best night's sleep she's had in a long, long time.

And the parents thing.
Poor, Poor Dash. And Fluttershy is caught in the middle. I found all the Dash and Shy moments to be great, even if there was initally a issue with Dash being the wrong sex (although, sure he might want that with Fluttershy )

Its funny. Your layout. I don't know if it's on purpose or what, but you have very close to the same heading style going on as in my story Fall of the Rising

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Well I wanted to have Pinkie and Twilight's relationship's kind of mirror each other in ways. Pinkie is going way slow. Twilight, after the few weeks she has had, is rebounding. Plus, she's kind of just at the point where any kind of attention is better than none. Twilight is at a low point. She needs a pony there that can actually listen to her problems cause the way I've been writing her is "I will solve everything and things will work out great" while it hasn't for her at all. She's lost Pinkie, she's in the midst of a coming war, and everyone is coming to terms with a new alicorn. She will be receptive, though awkward to the attention Luna gives. I was actually this close to having Twilight say that she didn't expect a relationship. Cause Pinkie and her fell into one, mostly by accident.

On the Celestia and Discord scene, I have shown them together- but it was a rather long time ago. Last year at least. This is definitely a scene that I had been building to, and writing Discord was fun. Don't usually do it, but when I get a good idea for a silly gag involving him, I run with it. But this is also me trying to get some of the season 5 finale back in- time travel/ alternative universes exist and with Starlight still having the ace in her sleeve of the time spell, I plan on using that at some point, unless things change.

And besides the gender issues, now fixed, yes, I made Dash's parents act like they do in the show. Way too supportive and yet also still act like I had planned for them to act in the beginning. They sort of feel bad that they sent Dash off to the circus, but like, she's a Wonderbolt now, and she's totally fine. Emotional trauma doesn't just go away so it sure won't because the parents are back. At least I haven't shown off Shy's mom yet. She's far less a gray area in parenting.

And the worldbuilding is kind of one of my favorite things to do in the story, so I'm rather glad someone appreciates the hard work I tend to put in those sections. Cause primarily they are for me, but I wanted to have a whole world war in a story. If I don't do worldbuilding, it'd be kind of a shallow good guy vs. bad guy thing. And while I like that sometimes, there is some nice gray. And Capper is one of my favorite characters to write on that front so he's going to be popping up every once in a while.

I probably saw your layout in FotR and liked it. While I had a similar layout for earlier chapters and similar way of structuring things, I probably shifted ever so slightly towards that because I like how it was outlined and kept the pace of the story while only needing a little bit of scene setting by telling the location.