Can't Help Falling In Love

It really snuck up on me, but I've finally reached the part of Evva's story where "someone" falls in love.

I've tried to drop hints that it was starting to happen, but now I actually have to show it getting a lot stronger.
The problem is I've never been in a relationship. And I have no idea how to write someone falling in love. @_@

Well, this is a first draft. I'll just have to do my best, but also keep it simple. In later drafts, I'll have a better idea of pacing and timeline, and I can fix it up.