Almost everybody knows that Ginny loved Harry since the first time she saw him, but few people know exactly how she loved him. I found Ginny's Saint Valentine's poem dedicated to Harry that she wrote in her first year at Hogwarts:

"Eyes of a toad and shiny green in brine,
Blacks and shiny hair like a raven in flight

I wish that was my - what joy divine! -

The hero who vanquished the Dark wizard intent. »
(Harry Potter and the Chamber of Secrets)

I don't know if you knew that news, I found it really cute and I suddenly thought that this is a great proof of true and shy love.