I dont know. You can still be sad like if you have a plan the next week and then he/she breaks up with you and it's like a HUGE suprise maybe one day cry and dress like a disaster. But then then next day be a queen, girl!
If he breakup with you don't worry he is the one who lost the best person in the world from his life:) so don't cry don't let him know you are hurted just dress like a queen and act like one :)