were you ever cheated on?

my ex fucked someone and left me for him for 2 weeks to come back to me 4 months later i dumped her bc she never cared about me only for my dick...we tried to be friends and she became a prostitute then dumped me to the side saying the whole best friend thing was just her using me for attention. i got all the other people she hurt and they called her out in school for who she is...a piece of shit who toys with other peoples insecurities.. she now walks the halls in absolute fear of me although i live in a different country