Two Maples Leaves I've Found

A leaf flew from between the pages
that pressed. I wondered why it was alone.

Once there were two,
Both green and Maple. Back then,
We were better friends.

I know the other is nearby
I'll find it, if I think long enough
And look in the right place.

Has it been five years ago? Maybe just four…
You gave them to me?
They are not the only things I've kept.