The most unique love story was that of Radha and Krishna. Whenever there is love, Radhakrishna's name comes. It would have been loved by all but no one would have loved the unique and wonderful love of Radha Krishna. They were two different bodies, but their souls were one. Seen somewhere such a wonderful confluence? Radha Krishna had love since his childhood. When Krishna was 8 years old, the two fell in love. Radha was acquainted with the divine powers of Krishna. Throughout his life, Radha loved Shyam. Shri Krishna was also the most beloved of the two things and he is both his flute and the Radha. The flute without Radha is nothing and no flute of Radha Krishna.
Before going to Mathura, Krishna had promised his Radha that he would come back to him, but he did not return to him. After the visit of Shri Srikrishna, the King of Vidarbha State, Rajeshwar, came to know that Radha was his daughter Rukhmani and that she had gone and took her daughter Radha with her. Krishna and Rukhmani were not married and Krishna had to be married by expropriation of Rukhmani. So you may have understood that Rukhmani and Radha were the same but they are mentioned in different ways.