Y'ALL KNOW THIS MANHWA?

It's where the ML fell inlove with his Uncle (?). So the MC was the uncle, after making out with each other and realizing he had fallen inlove he left the apartment they both share and went to live somewhere. Then the ML was looking for him only to find him in a small apartment, his bed was literally next to his bathroom.

Ps. I'm not really sure if they have that Uncle and Nephew relationship, I forgot most of the plot and that's all I remember. I've been thinking about it.