Krishna is bhava grahi, which means that what He is looking at is that there is some love. That is what Krishna feels bound by. He can't turn away from love; that is how powerful love is. His attention will always be focused on anybody who offers Him something with love. Certainly, He will reciprocate fully with that offering. He is the greatest lover, and He knows how to reciprocate dealings of love better than anyone else.
Taking Care of Devotees
Pg 157
1st Paragraph