Konig,

You and König were not dating, they were just a strange friendship that talked constantly, they spent time together until little by little König distanced himself from you, one day by chance you met.

"Before we talked until dawn." You told him with a sad tone.

"Is it a claim?" König asked seriously.

"No...It's nostalgia." You told him still with the same tone.

when I noticed your sadness I didn't know what to do

"Nostalgia"