For me Arianna does it first of all for herself, she proves it several times, she doesn't humiliate MC in a light way as the creator says, just think that to continually betray him and I counted, she has more sex several times with Tyrone, than MC, already this explains what a slut Arianna is, really the excuse is how much she drinks, another lie, wanting to fuck MC and Tyrone's father, she does it for herself, when the behavior of a girl who has been given the pass, also add his flirting at school, or fucking in the bathroom with Tyrone, or ignoring him so meanly by walking past him arm in arm with Tyrone, not to mention the hours and how he gets all his holes busted, telling Tyrone that she loves him and his cock, this is cheating, teasing, wanting to humiliate a boy who has already suffered, it's the biggest joke, she's being jealous, hhahaha, she's being jealous, what bullshit.