[lightbringer]

Spoiler for continued discussion/speculation for above spoiler. not very spoilerly IMO though:

I'm going to (very) liberally interpret that as the "fate of losers in love" as they both lose to Nagi (whether Hayate realizes his feelings yet or not =)

But who knows, maybe a new love will bloom from their common misfortune. And doesn't that spaced out look of Nishizawa's seem really moe? :3