You guys aren't the best of friends but you guys are gradually building your friendship, one brick at a time. Take some time to know this person; help improve your friendship. If you don't really like this person or you are just now starting to lose interest in this person then either give up the friendship or live with it.
Athena was the goddess of battle and the goddess of wisdom (think Buffy crossed with Willow). You are quick in thought and action, and you've got a real aggressive, competitive streak. You don't back down from confrontations, and you can be fierce when protecting your friends or your own honor.