Some of the girls that I lived with were bio majors too. We had a lot of the same classes but they were not planning on medical school. At first when they asked me my scores I would tell them. But then they would get super pissy and mean to me because they studied more than me and did a lot worse. I told them that I would just help them study for the next test if they wanted, but they were too proud to get help from me, so whatever. Anyways from there on out I would always just say I got a B even when I always got A's. And I never studied near them. And I said I was going to the library when I wasn't. Kind of sad when you have to lie to your roommates the way you would to your parents.
BTW they counted studying as being in the library. didn't matter what they were doing when they were there, but if they were in the lib it was studying. RIGHT....