Can someone explain to me what I'm missing? Why is he ignoring him? What did black hair do...

I'm confused too... Like he was sad and then just went the next day.. What the he'll happened??? Help us, someone?

Glad I'm not the only one confused lol.

I think he is giving him a taste of his own medicine

He's mad at him because he was looking for college dormitories to prepare for the future when they 'break up' without taking Chun Sams' feelings into account. He's not the only one anxious, like how Chun Sam portrayed in his imagination.
P. S. I really thought he said all that. >.<;

I think Sam is mad cause black hair guy sees everything negative and doesn't have any hope in their relationship