More like Yellow Keeper becoming increasingly jealous of everyone working on Dragon Keepers because he felt that they're more vital to the production than he is.
Basically, he took a hit to his inflated ego.
Him reporting Red Ranger for murder feels more of him finally being able to get rid of...
Of course she's going to believe she's going to get involved. She essentially murdered three of the bullies (disappearances as far as the school is concerned), Okaya is getting suspicious and correctly surmised the mother is involved and they're now playing cat-and-mouse with each other.
A...
It's quite amazing to use alternate material characters like Yuu like this. I love that this manga is going to touch almost everything UC-related in this.
Amuro gained a near mythical status as a pilot and his final known act was rallying soldiers from both sides to push Axis alongside him and succeeding through Newtype shenanigans.
People turning him into a Space Jesus is entirely in the realm of possibility.
That explains why she took her time killing him and the rest; she's trying to get into the mindset of why someone would torture her son and brutally kill him, and she found absolutely no joy in committing such heinous acts.
Maybe, but it's also equally likely he becomes her accomplice given what happened to Maria's son, plus Maria is gradually growing into her counsellor role instead of it simply being her cover.