I guess I just think that Tyrande isn't that hard to seduce. Her boyfriend--let's face it, they aren't husband and wife--has only been around a few times over the last ten thousand years. He wasn't even there for the War of the Shifting Sands, what a loser. And Jaina, having just been dumped--let's face it, she might have left, but Arthas is clearly the one who dumped her--wants a rebound.