evaṁ bhagavataḥ kṛṣṇāl
labdha-mānā mahātmanaḥ
ātmānaṁ menire strīṇāṁ
māninyo hy adhikaṁ bhuvi
evam - in this way; bhagavataḥ - from the Personality of Godhead; kṛṣṇāt - Lord Kṛṣṇa; labdha - receiving; mānāḥ - special respect; mahā-ātmanaḥ - from the Supreme Soul; ātmānam - themselves; menire - they considered; strīṇām - among all women; māninyaḥ - becoming proud; hi - indeed; adhikam - the best; bhuvi - on the earth.
The gopīs were proud because they had attained as their lover the greatest of all personalities. So in a sense they were proud of Kṛṣṇa. Also, the pride of the gopīs was a pretense created by Kṛṣṇa’s pastime potency in order to intensify their love for Him through separation. In this connection, Śrīla Viśvanātha Cakravartī quotes Bharata Muni’s Nāṭyaśāstra: na vinā vipralambhena sambhogaḥ puṣṭim aśnute. “Direct contact is not fully appreciated until separation has been experienced.”