I really like this, nice job...the way it's written makes it feel so personable.
Take care, Eleni

"This is it --
(Breathe in, breathe out.)
It's over.
We're done.

...I think."

You are trying to hard to convince yourself to get over this person, to let them go and in the end you try to make it final, but still you linger onto the thought that maybe, just one day. I understand exactly how you feel, I feel the same way many times a day right now. Take care and don't let this control you, the memories will always stay, but your heart can move on.