Here's some nectar from the Nectar of Devotion
Because Krsna is the Supreme Personality of Godhead, it is very difficult to approach Him. But the devotees, taking advantage of His compassionate nature, which is represented by Radharani, always pray to Radharani for Krsna's compassion.
The behavior of the confidential friends of Krsna is described by a friend of Radharani who told Radharani, "My dear graceful Radharani, Your intimate friend Krsna is also served by His intimate boyfriends. Some of them cut jokes with Him in mild voices and please Him very much by this." For example, Krsna had one brahmana friend whose name was Madhumangala. This boy would joke by playing the part of a greedy brahmana. Whenever the friends ate, he would eat more than all others, especially laddus, of which he was very fond. Then after eating more laddus than anyone else, Madhumangala would still not be satisfied, and he would say to Krsna, "If You give me one more laddu, then I shall be pleased to give You my blessings so that Your friend Radharani will be very much pleased with You." The brahmanas are supposed to give blessings to the vaisyas (farming and merchant caste), and Krsna presented Himself as the son of Maharaja Nanda, a vaisya; so the brahmana boy was right in giving blessings to Krsna. Thus Krsna was very pleased by His friend's blessings, and He would supply him with more and more laddus.
After He had stolen some yogurt from the pots of two gopis, Krsna told one of His gopi friends, "My dear beautiful friend, I can take oath that I have not stolen even a drop of yogurt from your pot! But still your friend Radharani is very shamelessly smelling the flavor of My mouth. Kindly forbid Her from this devious policy of putting Her face near Mine." When Krsna was speaking like this, the friends of Radharani could not check their laughter.
From the Srimad Bhagavatam 2.3.23 purport
In Vrndavana all the pure devotees pray for the mercy of Srimati Radharani, the pleasure potency of Lord Krsna. Srimati Radharani is a tenderhearted feminine counterpart of the supreme whole, resembling the perfectional stage of the worldly feminine nature. Therefore, the mercy of Radharani is available very readily to the sincere devotees, and once She recommends such a devotee to Lord Krsna, the Lord at once accepts the devotee's admittance into His association.
From the Caitanya Caritamrta Madhya test 87-91
"Srimati Radharani's twenty-five chief transcendental qualities are: (1) She is very sweet. (2) She is always freshly youthful. (3) Her eyes are restless. (4) She smiles brightly. (5) She has beautiful, auspicious lines. (6) She makes Krsna happy with Her bodily aroma. (7) She is very expert in singing. (8) Her speech is charming. (9) She is very expert in joking and speaking pleasantly. (10) She is very humble and meek. (11) She is always full of mercy. (12) She is cunning. (13) She is expert in executing Her duties. (14) She is shy. (15) She is always respectful. (16) She is always calm. (17) She is always grave. (18) She is expert in enjoying life. (19) She is situated at the topmost level of ecstatic love. (20) She is the reservoir of loving affairs in Gokula. (21) She is the most famous of submissive devotees. (22) She is very affectionate to elderly people. (23) She is very submissive to the love of Her friends. (24) She is the chief gopé. (25) She always keeps Kåñëa under Her control. In short, She possesses unlimited transcendental qualities, just as Lord Krsna does.’
All glories to Srimati Radharani!