As Count Legato, he was arrogant, controlling and vain. Although much of his personality was influenced by the magic of the original Legato, Panpipe's desire to be loved had a part in his actions as well.
However, when Panpipe takes off the contact lens containing Count Legato's magical essence and reveals his true form, he's shown to be a very lonely, nerdy boy who believes his only purpose in life is to be the loser everyone laughs at. His constant bullying at school left him with low self-confidence and a strong desire for love and attention. Although he was angry at Mandolin for humiliating him and not remembering his name, he ultimately chose to forgive him after Mandolin receives a stern lecture from his mother and apologizes for his bullying.