Adi Deva Das nityananda-gadadhare ye priti antare taha kahibare sakti isvare se dhare
The transcendental affection between Nityananda and Gadadhara can be described only by the Supreme Lord. (CB 3.7.113)
ki adbhuta pìti nityananda-gadadhare ekera apìya are sambhasa na kare
gadadhara-devera saìkcdpa ei-rupa nityananda-nindakera na dekhena mukha
nityananda-svarupere priti yara naìi dekha o na dena tare pandita-gosaìi
What wonderful affection there is between Nityananda and Gadadhara! Neither of them would ever speak to anyone who was disliked by the other.
This was the vow of Gadadhara: he would never see the face of one who offends Nityananda.
Gadadhara Pandita would avoid being seen by anyone who had no love for Nityananda Svarupa. (CB 3.7.123-125)
Text 125 indicates that Radharani would not allow anyone to enter Her camp until and unless that devotee develops love for Nitai.
gadadhara subha-drsti karena yahare se janite pare nityananda-svarupere
nityananda-svarupo yahare prita mane laoyayena ga