Krishna stayed with Rukmini in a private apartment (अन्तःपुर - antaHpura), which was decorated with various flowers, ornaments, and was sitting in hamsatoolika talpa, made of several ratnas and sticks.
Similarly in the other antaHpuras also, Krishna lived with Other Patnees (पत्नी - patnI - wife) and was giving Happiness to Them all.
Krishna does not need any Sukha (सुख - sukha - happiness) from His Wives, but He is giving Sukha to His Wives.
He is svArAma (स्वाराम - delighting in one's self).
