Hurt/Comfort Exchange Endgame Update/Addendum

I'm pretty sure whoever was assigned me has already posted, but in case anyone is wondering (for treats or otherwise), yes, I've seen Endgame. Heads up that this post is going to contain spoilers for anyone who has not. I'm going to try to address a number of things a potential creator might have questions about.

Also, I have finally seen both Ant-Man movies when I was watching almost all of the MCU pre-Endgame, so that part of the letter is now out of date. I'm still good with as much or as little being included from other parts of the franchise as you'd like. (For the record: I loved them.)

( Endgame Spoilers Ahoy )