help me find this manhwa

so its a bl game manhwa where mc uses a female character. mc and ml dating (ml is obsessed with mc despite knwoing mc is a man behind the female character) and mc heard from ml’s friend that ml’s last relationship was a disaster and that ml didnt take relationships seriously. So mc confronted ml and ml said the “last relationship” they never really dated, bscly a rumor. THATS ALL I REMEMBER