My clmates have been giving me the cold treatment. I think they have no remorse in doing that ?

That was due to my -like personality, and to the fact that all my life I have had no friends (because of my overweight and my acne scars). I made the mistake to tell this to my clmates, they bully me and disregard me. they have conked me and throw my schoolbag away. I decided to recover my dignity and self-esteem by not talking to them, and that is what I am doing. I had been infatuated with one of my clmates. I only wanted his friendship, but he gave me attention on and off, manipulating me: I think he revels in playing with my feelings. I realized that I will never be his friend. But, now that I'm talking just with myself and with nobody else, he makes sounds and stares at me, and approaches me. I feel so anxious. I don't want any friend of my clroom. I just want to get college over.