I don't see much connection between you as Jupiter and him as Merc. He is pretty wrapped up in his own affairs, in the sign of his dignity and in his own/7th house.
You as Jupiter are not strong in this matter, in the sign of your fall, Capricorn. Jup also does not aspect him/Merc, but rather are disjunct, five signs apart.
He will change signs soon from Gemini to Cancer, and then you will like him even more with him being in the sign that you/Jup exalt. But exaltations can be like gasoline on a fire. They flare big and sudden and then go away.
I don't see much to be gained by you in this matter.