Michelle:

First question is one of spotting the source.

IS it the professor/teacher, or is it your "partner"?

Second question, is how you will handle the situation once the shock and chagrin wears off. And it will wear off; it is not the substance of the incident, more about a response to it.

To handle it you have to get a clear idea of how you may have contributed to the situation coming about. Without some idea of own-responsibility, you ar eleft only with a blamefight,. which goes no-where. But this certainly does NOT require buying any oppressive bull fromt the instructor. It requires finding those answers that are (a) true to your own sense of things and (b) open the door to a path of action you can take.

I would urge you not to waste all the work you have invested just to accomodate some jerk. Nor to get tangled up in a blame-fight. There is a better path open to you, but it take some finding.

A