Board Thread:Spoilers!/@comment-6175354-20130916233049/@comment-5655661-20130924165658

Maybe Regina (if she indeed is Ursula) went after Prince Eric instead of Ariel. Ariel was just a pawn whom she wanted to use to harm Prince Eric in some way. If he's, for example, Queen Eva's brother he would be in the line of succession so that would explain Regina's motives. Ariel/Eric story could happen after Snow was put under Sleeping curse, Regina wanted to eliminate him cause he was a threat to her claim to the throne.

Oh god, I need this show already :)