He goes all way out to make her smile.
He panics when he accidentally gets her angry and tries all ways to make her happy again.
He stays up late at night to talk to her during her sleepless nights.
He remembers everything little thing that she said before.
He doesn't mind her being herself again, even if that's the immature and willful her.
And..
He doesn't ask for anything in return, for all the things that he has done for her.
