I am angry with you

Today i got down on my experiment again, exactly speaking, it is the experiment of  one of my senior fellow apprentices, who i really don't like.Because he is so mean with us, not only telling the tutor about my side job, which ignites disatisfaction among the toturs,but also asked us to help him with his own work,which in return is with no thanks.

To tell the truth, i never thougth him as such kind of person. If he did't help us, we can understand, for it's so naturally.However, we just need you not to sell us out in front of the tutor,which is the least thing we want to see,and may get us in trouble.

Since things are going like this, so we can mere work hard toward it,and see if there is anything can be done to change it.