Yep. Shuyin would've done ANYTHING to get Lenne. When they finally reached Vegnagun, they both got shot down. o.O When Yuna uses her Songstress Dress Sphere, Lennes spirit inhabits it, right? That's why Shuyin is so obsessed with Yuna. And when Shuyin finds out it's not Lenne, he goes crazy. Thus, trying to blow up Spira, to see Lenne again in the Farplane. I think anyway. So, he's not a villian. Just a mad lover.