Shukdev said: Parikshit once travelling on a pilgrimage tour, Arjuna reached in Prabhas region. There he learned that Balarama was desirous of marrying his sister Subhadra to Duryodhan. But Vasudev and Krishna were not in the favour of this marriage. So, a strong urge took hold in his mind to get Subhadra as his wife. Acting as per the urge, Arjuna reached Dwaraka in the guise of Vaishnava sage. It was rainy season then, so with an excuse of Chaturmasya Vrat (four months long fast), Arjuna stayed in Dwaraka. During his stay, Balarama served and looked after him very well. But neither Balarama nor any other inmates of the palace could recognise Arjuna.
Once Balarama invited Arjuna to his home. There he offered good, delicious food to Arjuna. Subhadra too served him well. There, they fell in love with each other. Later on, boarding a chariot, Subhadra went out of the palace for a joy ride. At the outskirts of the town, Arjuna was awaiting for her. He had already taken permission of Devaki, Vasudev and Krishna. Subhadra too had silently nodded her acceptance.
So that evening Arjuna and Subhadra eloped from Dwaraka. The news of Subhadra eolping with Arjuna first outraged Balarama. But Lord Krishna and other near and dear ones convinced and pacified him.