What is relationship between Radha and Krishna?

Radha and Krishna share two kinds of relationships, Parakiya (Love without any social limitation) and Svakiya (married relationship). Radha asked Krishna why he can't marry her, the reply came "Marriage is a union of two souls. You and I are one soul, how can I marry myself?" Several Hindu texts allude to these circumstances.

Radha Krishna's marriage is being performed by Brahma in Bhandirvan, Vrindavan

The Sanskrit texts, Brahma Vaivarta Purana and the Garga Samhita mention that Krishna secretly married Radha in the presence of Brahma in the Bhandirvan forest before leaving Vrindavan. The place where Radha Krishna's marriage was conducted is still present in the outskirts of Vrindavan, called Radha Krishna Vivah Sthali, Bhandirvan. The story mentioned in Brahma Vaivarta Purana indicates that Radha has always been Krishna's divine consort. But to give importance to Parakiya relationship (love without any social foundation) over Svakiya's (married relationship), Radha Krishna's marriage was kept hidden. 

 

How did Radha fall in love with Krishna?

Radha and Krishna are said to have spent their youths together, dancing and falling in love. While the two are held to be each other's closest partners, they were not generally held to be married. Various stories address this. To some, they did not marry since they already had one soul between them.

At what age Krishna fell in love with Radha?

The Vedic traditions claim that Lord Krishna met Radha when he was just seven years old and immediately fell in love.

Who was Radha in relation to Krishna?

Radha, in Hinduism, the gopi (milkmaid) who became the beloved of the god Krishna during that period of his life when he lived among the gopas (cowherds) of Vrindavan. Radha was the wife of another gopa but was the dearest of Krishna's consorts and his constant companion.