Advaita Acharya sets the highest example by rejecting His own son, Madhusudan, because he accepted Lord Gauranga only, but not Nitai. One may possess the greatest admiration and faith for Gaurhari, but if they have no attraction for Nityananda Prabhu...it is nothing but a grevious offense. Such so-called love is only a farce and nothing else. Advaita Acharya enforces this principle by forsaking His own son. Unless one has faith in Nitai, no matter how favourable their bhava is towards Sri Chaitanya, they are deemed as an offender. This is spoken by Srila Krishna das Kaviraj Goswami when he fights with his brother for having faith in Gauranga Mahaprabhu but lacking faith in Nitai.
Gauranga Mahaprabhu says Himself that even if a soul worships Him with great reverence, if they have even the slightest envy towards Nitai...then that soul is never dear to Him.
tilardheka tomare yahara dvesa rahe bhajile o se amara priya kabhu nahe"
(CB Madhya 5.102)
"Anyone who maintains the slightest envy of You is never dear to Me even if he worships Me."