Cat Got Your Tongue?

Catherine is an everyday teenager with an everyday teenage life. But there's two problems; 1. She has Selective Mutism 2. She's an orphan that lives with her alcoholic aunt. Unexpectedly, her aunt can't afford the school Catherine is in so she moves her to a different school. Guy, the school heartbreaker notices her silence and tries to make her speak. He doesn't listen when she tries to explain her anxiety disorder and continues to pick on her. Making her even more uncomfortable around him. Will Guy figure out about her anxiety disorder or will he continue to annoy her in hopes to make her speak?