For me, ml is more like a yellow flag in my pov because he's just trying to make the mc fell in love with him but in the end he stopped that because he genuinely likes him and he forgets about the revenge and wants the best for the mc as the story proceeds. Also the mc acting like that because he doesn't want to trust someone fully because what if they leave once they gotten more close and wants to see if the ml will leave once the mc acted like that, More like defense mechanism via words of the mc. By the touching, I think he did that because he wants revenge or either reaction of the mc because he got played and lied to when the ml trusted the mc so much and I aso added "imo" because it's my opinion on what I see. I stated that he's better than those black flags which I'm right tho because if you dug better with some manhwas that has a black flag ml, you'll be genuinely terrified of them (Also if you do not like the story, You're free to choose something better than this, Its really based by the viewers taste so hope you understand and I'm not trying to argue with you or anyone :3)
I don't like the fact that ML doesn't show any remorse on his actions. I genuinely felt bad for MC.