What if your significant other cheats?

if ur girlfriend cheats on u pretend that u r really sad and dont talk to her for about a day or to then u say why r u cheating on me if u and me r giong out babe it will come to her and just sat that u luv her very much and that she completes u p.s. take her out to eat or to the movies or wher yall first met

Dump her.