It looked like the MC was tryna help Yohan, but instead of seeing it that way yohan got embarrassed and instead of being emotionally mature he chose to act like a child and bully the MC. I know in the novel the bullying last way longer but luckily it looks like it was somewhat skipped over in the comic.
https://www.mangago.me/home/mangatopic/21841102/
Credits to peepaw (☞ ° ʖ °)☞

Just read everything in one day but can someone explain, why was everything going well and then after the dinner with his family Yohan went mad… I liked him..