So Lets say Marinette did end up confessing her crush to Luka.
Luka accepts it and they start going out.
Adrien is a bit bothered by this. But figures, hey, Marinette is happy so this shouldn’t be a bad thing.
Well as time goes by, Nino is hanging out with Adrien less and less, as he is with Alya. Plus Alya and Nino going on Double dates with Marinette and Luka.
Adrien starts feeling more and more alone.
Plagg does his best to cheer him up, and he still has Ladybug right?
Well during one fight with an Akuma. Ladybug accidentally vents her frustration that she is “Missing a date for this” Chat noir overhears this and is just shattered.
After the fight, Ladybug expected a fist bump only to realize Chat noir was gone. She would have looked into it, if she wasn’t already late for her date.
Chat appears back in his room. He de-transforms. Plagg is doing his best to cheer him up.
“Plagg… I have a question.”
Plagg turns to him, “Yeah Adrien?”
“Cataclysm can destroy anything right?”
“Yea… Why are you asking.”
Adrien looks plagg in the face
Adrien has tears streaming down his face
“I want to destroy this pain I am feeling.”