I agree with, Marc...in the meantime perhaps you could seek him out and practice diligently with him. If there comes a time for you to correct him perhaps you could call your teacher over and ask a question from your point of view. Then it would not be just you and him.
I like to pay attention to how I feel about each partner on each day because I can learn a lot about myself that way. If I got to partner with a perfect uke or nage all the time so many opportunities to meet myself would be lost.
I agree. I also agree w/ MA's suggestion re: calling a sempai mtg with the sensei...but on a day to day basis, I would be summoning my instructor each and every time I had a problem with this student, framing the question as something *I* don't understand....