What did I miss, why did haebom suddenly change his attitude towards taesung...i thought m...

What did I miss, why did haebom suddenly change his attitude towards taesung...i thought maybe he was trying to get his guard down and then run away but then he was actually quitting his job...it feels like i missed a panel

I didn't mind the whole evil chaebol grandpa thing, it completely changed the tone of the whole series and didn't suit it but i decided to just take it as its own thing but now it doesn't make any sense at all