It's wrong to bully marginalized groups.
Ryan is working with Todd in a class he shares with his crush.
Ryan wants to seem tough in front of his crush.
Ryan overhears a classmate bullying Todd for being Native American and stands up to them.
Ryan thinks bullying will make him seem tough, so he mocks Todd for his Native heritage.
Ryan's crush thinks he is kind and tough for defending Todd in class.
Ryan's crush notices immediately, thinks of him as a tough thug, and reports him to the Professor.