Cross: I can't laugh at Tiedoll anymore... Jeez...
For this troper, the scene where Allen 'plays' the Ark back into existence, along with all his friends, with the musician's song playing in the background and Komui's "when you get back" monologue playing in the foreground. The anime does it best
Chapter 199: Kanda actually thanks Allen. He even calls him by his full name instead of "bean sprout."
Chapter 204: Road protecting Allen from an attack, despite the attack being incredibly dangerous for her.
Chapter 206: Cross has to nurse Allen back to health so he doesn't die, being the host. However, even though Allen is merely being used as a container, Cross seemed to feel something for him. Empathy and guilt possibly. He complains at having to do house work and nurse Allen. But on one page when he wasn't nursing Allen, he was just sitting by his bed watching him with a sad look on his face. Then he goes on to try and get Allen to cheer up.
It's hinted Cross was lying when he said he didn't care about Allen. The scene of him being by Allen's bed debunks him not caring at all, along with him being upset and caring that Allen was acting like Mana. Mother reminds him of Allen's fate, and shortly after she does, Cross drinks and brushes his previous mood under the rug to drink. When he tells mother he doesn't care, she had a kind of sad or sympathetic expression on her face. Seems she may have thought or knew Cross was lying. Then when Allen shows up at her door years later, she thinks to herself that Cross did love Allen after all-otherwise he wouldn't look the way he did.
Chapter 207: The bonds with your many Nakama with whom you've laughed with and fought alongside...No matter how far away we are from one another, we remain connected.
Chapter 208: Kanda bidding Zhu good bye is both heartwarming and sad, but definitely more heartwarming. But what really got me was how he stated this time he would become an Exorcist by his own free will as Yu Kanda. That it was rather reminicent to the scene where Lenalee accepted her fate just added up (and also it doubled with adorable hilarity when he drank the Innocence from Lenalee's hand).
Chapter 214: In a flashback, young Nea's reaction to his brother Mana waking up out of a coma. "Boo." So goddamn adorable.
The nicer moments in the relationship between Kanda and Alma Karma, such as Kanda slowly warming up to Alma when they were kids and Alma dying in Kanda's arms.