WoW - Oh God Please Let Me Get A CE For Burning Crusade

[AChimp]

Arthas is most certainly not allied with the Horde. The blood elves hate the Alliance now for not putting enough effort into defending Quel'Thalas.

You're forgetting that WoW takes place like 5 years after Frozen Throne, so lots of shit happens in between. Plus, it's Blizzard's game and they can do what they want. If you're going to get all fired up about blood elves being part of the Horde, then there's a million smaller things about the game that will also piss you off.