…The gopīs were aware of the reason for Kṛṣṇa’s sudden disappearance. They could understand that when they were enjoying Kṛṣṇa, they thought themselves to be the most fortunate women within the universe, and since they were feeling proud, Kṛṣṇa disappeared immediately just to curb their pride. Kṛṣṇa does not like His devotees to be proud of their service to Him. He accepts everyone’s service, but He does not like one devotee to be prouder than others. If sometimes there are such feelings, Kṛṣṇa ends them by changing His attitude toward the devotee.
Kṛṣṇa, The Supreme Personality of Godhead (1970 Edition)
By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada