Why do I care?

Why do I care what you think of me?
Why do I care if you get that text message?
Why do I care how I am around you?
Why do I care?
I shouldn't. I know I don't care.
My mind says I don't, but there's that something.
That nagging, pulling, poking feeling.
One saying I do care, I really do.
I don't want to listen to it, but it's there just scratching the door.
Frustrating and annoying, but everyday I put on a smile.
A smile to brighten the day, to get my mind off of it,
But still at the end of the day, there it is nagging.
There's even that dim hope, somewhere, lurking,
Hoping that there will be something,
But there never is.
C'est la Vie and I don't care.
I go on with everyday having fun and laughing.
I can always tell when it does pull and ponder it.
So
Why do I care?