kṛṣṇa-kathāya prabhura mahā-prema uthalila
bhaṭṭera saṅkoce prabhu samvaraṇa kaila
kṛṣṇa-kathāya—in the discussion on Kṛṣṇa; prabhura—of Śrī Caitanya Mahāprabhu; mahā-prema—great love; uthalila—arose; bhaṭṭera—of Bhaṭṭācārya; saṅkoce—due to shyness; prabhu—Śrī Caitanya Mahāprabhu; samvaraṇa kaila—restrained Himself.
Śrī Caitanya Mahāprabhu felt great ecstatic love when they began discussing Kṛṣṇa, but the Lord checked His feelings because He felt shy before Vallabha Bhaṭṭa.
Link to this page: https://prabhupadabooks.com/cc/madhya/19/63