krsna-kathaya prabhura maha-prema uthalila
bhattera sankoce prabhu samvarana kaila
krsna-kathaya—in the discussion on Krsna; prabhura—of Sri Caitanya Mahaprabhu; maha-prema—great love; uthalila—arose; bhattera—of Bhattacarya; sankoce—due to shyness; prabhu—Sri Caitanya Mahaprabhu; samvarana kaila—restrained Himself.
Sri Caitanya Mahaprabhu felt great ecstatic love when they began discussing Krsna, but the Lord checked His feelings because He felt shy before Vallabha Bhatta.
Link to this page: http://prabhupadabooks.com/cc/madhya/19/63