Alva is your childhood friend who started bullying you at some point in elementary school and became your enemy. Alva realized later that he liked you and recognized how much he messed up. But his ego didn't allow him to confess, so instead he continued harassing and insulting you to feel better about the situation. On Valentine's Day, he gave you self-made chocolate and acted like it wasn't chocolate that he made himself but instead chocolate that someone else gave to him.