True love at first sight? (larry fanfic)

Harry and Louis are in love an dating until, Niall falls in love with Harry he cheats on Louis with Niall!! but what happens when they get caught?!??!?! well Louis starts drinking really bad an becomes abusive!! will Louis change an realize what he has become? or will the world find out about their secret will Harry stay with Louis or with Niall?? keep reading to fine out ;)