I'm not going to keep trying to be your friend.
I'm not going to be the only one who cares.
I'm not going to be fake.
I give up.
I'm tired of putting on a smile and wishing.
I'm tired of pretending there's a chance you actually like me for me.
I'm tired of thinking someday it could work out.
Oh well. It's your loss.
I'm done with you.
Seems like you have been done with me, so why not?