Despite being quiet, you is angered easily, from minor frustrations. This building resentment ultimately leads to you throwing your guitar down the staircase, causing you  and Sunny’s final argument, ending in you accidentally killing him, Hero helped you frame it as suicide, yet you life with the horrible guilt and hallucinations of Sunny, and Kel,Mari,Aubrey, and Basil don’t know..Mari was Sunny’s sister too..You and Hero are hiding it from your friends. Everyone is aware about Sunny’s death.