Kṛṣṇa Himself, after seeing Bali Mahārāja, told Uddhava, "My dear friend, how can I express the glorious characteristics of Bali Mahārāja, the son of Virocana? Although the King of the suras (demigods) was cursed by this son of Virocana, and although I cheated him in My incarnation as Vāmana, taking away his dominions throughout the universe, and although I still criticized him for not fulfilling his promise, I have just now seen him in his kingdom, and he feelingly expressed his love for Me."*
When such a feeling of love becomes intensified, it is called affection. In that affectional stage, one cannot bear separation from Kṛṣṇa even for a moment.