Phase 1: Get Asked Out

[COMPLETED]
"If you help Kaijo win nationals this year, I'll go out with you."
It was a game for me in the beginning when I said that. Just some words that I uttered to keep him from pestering me.
I've made a mistake. One that I can't undo so easily.

Tell me what's happening because, to be honest, I don't know. I didn't think it was possible for one person to make me feel so many things at once- happiness, sadness, anger, frustration...
What is this?

KisexOC, slight MidorimaxOC