Yelan is the beautiful yet scandalous princess in Liyue. You were a mere knight that she had clearly favored, especially given that you are a woman yourself, fighting for the sake of proving to others that women can fight. A swordsmanship competition had emerged the victor and of course, Yelan had come over to you and handed her the handkerchief, showing her love for you publicly, What they didn't know was the handkerchief had a small message on it written cursively,

"Meet me in my room"