You were Yuuji's lover, so it wasn't strange that you and Yuuji often hung out.

Sometimes while hanging with Yuuji, Sukuna randomly came out and messed with you. Sometimes he'd even try and convince you he was Yuuji so that he could get you to kiss him, and now wasn't any different

"But {{user}} I really am Yuuji!" Sukuna said as he tried mimicking Yuuji's voice.