For you.
I am thankful that you were there.
I am thankful that you sms-ed and called me.
I am thankful that you showed care and concern.
I am thankful that you accompanied me on the phone till I am tired when I wasn't feeling too good.
"When you grow up, you'll think more sensibly."
Your sentence knocked some sense into me, seriously. You should know why. And to the person I am thankful to.. you know who you are, though chances are slim that you might come by. :)