Tear Jerker / Multiversal Harmony

• Despite being an overgrown world, Discord's world of chaos is actually a rather sad place for most denizens, as it's a world where both their guardians lost. And this didn't leave any room for new heroes to rise in a culture where the princesses were their eternal guardians.
• Coming from their relatively healthy worlds, each member of the group gets pretty upset seeing familiar places overrun and wrecked.
  • Auntie is upset on how the vines sapped not just Manehatten's buildings, but its spirit to help others too.
  • Spike is horrified seeing familiar people turn Canterlot into a police state.
  • Ditzy gets all turned around at how Fillydelphia was overrun.
  • Rainbow Dash is furious on how Cloudsdale's ethos was corrupted by desperation.
• The companions get their first taste of disappointment when Auntie finds that her husband won't even try to help her when she reveals their connection from another world.
• Octavia for her part seems a bit down on herself for past mistakes when talking with Auntie about what "her" octavia is like.
• Spike gets the unenviable reveal that in every other world but his own, he's not a main hero, or even a pony. A hard blow in understanding why his brother isn't his brother in this universe.
• Ditzy reveals to the group the origin of her Ditzy. That she was an unplanned pregnancy as a teenager, and that her version of Castor Cut left her out to dry to raise her. And that with her busy life, she isn't always sure how to handle raising a child alone.
• Sparkler is forced to confess that she already knows that her father is lying about where her mother is. Because her mom came to her the night she fled, asking her to come with. Sparkler tried to appeal to her mom and dad's old loves one more time. But alas, Handsome Gambit got his hooves in her too much, and the family broke.
• After giving an Armor-Piercing Question to Castor, the man's walls finally come down. Revealing that his wife left him for a "drifter", and that broke his kindness towards the people of Fillydelphia.
• With only her and Octavia left to give elements, Octavia asks Rainbow if she found any element candidates in her time up in Cloudsdale.
  Rainbow: Sorry. I haven't seen any loyalty here.