Shimotsuki-san wa Mobu ga Suki: Hitomishiri na Kanojo wa Ore ni Dake Dere Amai - Vol. 3 Ch. 17

[Filype]

Not quite imo. While the result is similar Hanabi was brainwashing him maliciously, Ryuuzaki just seems to be terminally oblivious.

egocentric to the bone. Like, his is a wrong "nice guy" compared to her, but still a bad person.

 

[ryongo]

POV: you are Ryouma and the girl you made a public confession is hugging another dude:

...and is 100%deserved

You point out how hilarious it is, thank you