Radha and Gopis once asked Rishi Durvasa about how Krishna is a Brahmachari.
She said: "How is Krishna a brahmachari [sexually chaste one] ? How is this sage a person that eats only Durba grass?"
- Uttara bhaga, Gopala Tapani Upanishad.
This is what Durvasa said in reply
Your beloved Krishna is the original creator of the two kinds of bodies.
On the tree of the body are two birds. One is an expansion of the Supreme Personality of Godhead. He is a witness. The other is an enjoyer. They are an enjoyer and a non-enjoyer. The first enjoys, and the second is Krishna.
In Him we do not find material so-called knowledge and ignorance. This ignorance and real knowledge are different. How can Krishna, who is full of real knowledge, become a materialistic enjoyer ? He who desires pleasure is desireful. He who does not desire pleasures is not desireful.
Krishna, who is free from birth and death, who is unchanging, who cannot be cut, who stays by the Yamuna [river], who stays among the Surabhī cows, who protects the Surabhi cows, who stays among the cowherd boys, who stays in all the Vedas [scriptures], who is glorified by all the Vedas, who has entered all living entities, and who controls all living entities, is your husband."
- Uttara bhaga, Gopala Tapani Upanishad.
Krishna is beyond all material feelings and emotions. He is beyond birth and death and is glorified by the Vedas. How can such a supreme God thus be affected by any human feelings like list of desire ?
Srimad Bhagavatam similarly explains this during the Rasaleela chapters
Lord Krsna enjoyed with that gopi, although he enjoys only within, being self-satisfied and complete in Himself. Thus by contrast he showed the wretchedness of ordinary lusty men and hardhearted women.
- Chapter 30, 10th Skandha, Srimad Bhagavatam.
Listening to the piteous prayer of the Gopis, the Ruler of the Masters of Yoga laughed loudly. Although he was ever-revelling in his own self, out of mercy and grace he conferred bliss on them.
- Chapter 29, 10th Skandha, Srimad Bhagavatam.
Krishna is far beyond material emotions. No one should compare Krishna's actions with the actions of any normal human.