Board Thread:Skyrim/@comment-12351857-20130809061636/@comment-12736981-20130809070432

Because he went to war against the elves at Summerset Isle and won, in a nut-shell (and i'm sure somone can elaborate on this a little better than i can) they were bitter over the loss, and their term's in the peace treaty were basically salt in the wound of the damage they had already done. It was them baasically being butt-hurt over the past.