When ahem holds gopis hand all of a sudden, she immedly frees her hand (Holi-day Effect) and on seeing his disappointment she feels very bad
She understands ahem likes to know the reason for her behavior. But he could hardly ask anything to her
To make him alright, she holds his shoulder and massages his back
On seeing her hands on his shoulder he is highly convinced and Thank her. I think his thanks is not only for her massage