That depends on what kind of person your tutor is. If you are a serious teacher, you won't think you are speaking ill of your classmates. How did you explain it to your tutor? The tone and words you use are very important. If it is that kind of grievance, it will make people feel that you are suspected of complaining. There is also the tone of the process, whether there are unconscious modal particles with coquetry.

Finally, in fact, I don't advise you to tell the teacher about it directly. You can finish your paper before handing it in. Have a good talk with the tutor about the paper, apologize to the teacher when you have finished talking, and then explain the contradiction between you and your classmates in a normal tone.

This will be much better, and there will be no suspicion of telling the teacher.