Yaoi title help!!

i don't remember much but i think they go to college together but when they are at school, they act like they don't know each other. the seme is a popular/playboy one. I think the uke approached the seme first saying to stop flirting(?) with his girl friend. so the seme suggested that the uke will be the replacement(?). and in the end of course, the seme fell in love with the guy.. thank you in advance