User blog comment:Endless Exceptions/Champions Friends and Rivals list/@comment-6062847-20130513064920/@comment-3974211-20130517071003

Ashe is friends with Lissandra; she's rivals with the Ice Witch. She isn't aware he two people are the same.

Also, I think Draven should be Draven's rival - not friend.

Affiliation =/= friends and rivals. Garen stands against Noxus, but he doesn't have a rivalry with every single Noxian.