Ecstrinsic's manga / #unrequited love(6)

This manhwa perfectly described how it feels to have an unrequited love. I love how they managed to depict its bitterness. Not to mention, it had an unresolved ending...

Out of all the old/young stories I've read, this one seems to be realistic. Not to mention the old man doesn't look like a young person that just had wrinkles or random lines added to his face.