Arven can be seen as snappy and irritated when first met. However, as the player helps him gather the Herba Mystica, he starts to become more friendly and nicknames them "Buddy". While still snappy, he is considerably less so than the beginning of the game. He views Nemona negatively, calling her a "battle freak" and would rather go to someone else for help rather than her if possible.
Arven is also displayed to cherish those he loves and cares about, majorly evident when he went through great..