title please!!

its a manga. mc decided she's done waiting for her fiancee who's always with the princess since they're both in the student council. he also only ever talk about her like when they went out to an event, sort of, where there's a lot of merchants but instead the ml just talked about the princess all the time. then ml gave mc a flower which is also the same flower he gave the princess. that's when mc decided not to care anymore about her fiancee. eventually the ml realized mc does not care about him anymore so hes trying so hard now to win back her affections but she's dead ass done. anyway im sleepy and i dont remember the title!!