He is happy not only because he has a further reply to give to Satan but also because he can now become your Rewarder. And that is something he wants to become.
केवळ सैतानाला प्रत्युत्तर देता आल्यामुळे नव्हे तर आता तो तुम्हाला प्रतिफळ देऊ शकतो यामुळेही तो आनंदित होतो.