Seku, normally? Considers Adam to be a friend-- a bit of a headache of a friend, but someone he'd never want to see go away because he's clingy like that. He seriously liked that Adam finally came back, but was still hurt by him leaving in the first place. He'd never have any romantic feelings for him though. Seku's very much into women.

Hmm... overall? I think both would go for the human-- but Guard would feel like ten times worse over it. Ai the human and Ai the demon are basically a similar situation for him and how he perceives everything, so it'd make him feel like a hypocrite no matter what.

Though on that note, how would Ai the Demon feel if she learned that Seku's currently the Guard?