Can you explain the situation with the Dakshina involving Kaka Mahajani and his friend? Why did the friend feel restless?

The incident with the Dakshina is a key part of the narrative in Chapter 35. After the friend had already broken his vow by bowing to Sai Baba, Baba asked for Dakshina, but pointedly only from Kaka Mahajani. Later that afternoon, when they went to ask for permission to return to Mumbai, Baba again requested Dakshina. This time he specifically asked Kaka for seventeen rupees. As Chapter 35 highlights, Baba asked nothing of the friend. This deliberate exclusion made the friend feel restless in his mind, likely because he had come with firm resolutions but was now being completely overlooked in the very act he had sworn not to perform, while his companion was asked twice.