Waste of time

I stay up just to think about about you
And theres nothing on earth I'd rather do
Thoughts that are happy and some that are sad
Some make me smile and others make me mad
But when I think about what goes on now
I want to give up and throw in the towel
I try so hard to make it real
But I'll never know how you really feel
You have your life, you've left mer behind
So i guess loving you is a waste of time