Imagine that Cerise was smiling, after handing her a white flower you had to leave and start your project with Raven.
"Thanks, Y/n!" Cerise says to you. "Your welcome. Cerise. Now, I have to go meet up with Raven for our project that's due tomorrow. Later, Cerise." You say to her.
Then you hugged her and then ran away with a wave behind you. "Bye, Y/n!" She called after you and when you had disappeared - she smiled at the white flower you had gave her.
Her crush on you... just grew even bigger.