He’s autistic. It has nothing to do with their age gap.
Where did they say he's autistic? Now you're just making excuses for his behavior, he's a functional adult, and I bet autistic people wouldn't throw shit like this, there is no excuse to run away of someone that's it's trying to communicate shit that's happening and why they behave in a certain way, he's acting selfish and bratty, instead of just listening, he decides everything by himself and the gets mad when shit happens, when he didn't even think about anyone but himself and his own feelings
100% agreed. He needs to grow up.
Sangwoo is irritating like just stop running away and have an adult conversation. You can see the age difference but it's get exhausting