ask to be paired with someone else. complain to the instructor that he isn't sparring, he is trying to hurt you. TBH there is a difference. If your nose is getting busted, first punch, there is something wrong with the training matchup.
Seriously, let the instructor know. You aren't there to build some other douchebag's confidence while you rack up injuries and medical bills.
Your right, its just so embarrassing, my coach was literally laughing at me after i got my ass kicked. But yeah your right.