I already read the next, next, next,next chapter.
Spoiler!
He rejected YJ. YJ respect HG not wanting to see him so he adjusted and live in his friend room instead. But he keep buying foods for HG and leave it to the front door for him to see. YJ know that HG will move to the next dorm because of his work the internship that mentioned above. He decided to see HG room and found out that it's dirty, it's like a bathroom size and he can't accept or doesn't want to see han garam living and sleeping in that room so he sell some of his things and bought a new big room for HG and Him