Yoda, thank you for replying. I absolutely agree, this is not a good combination, and I've been trying my best to put an end to this.
The college already knows of the situation.

ickydog2006, thank you very much for your support, I really appreciate it.

Confusedinomicon, he told me he hasn't been bullied but I don't really know. He lies all the time now.

I am very sorry for such a late response but there was a lot going on, things took a turn for the worse. I'm afraid that I ultimately failed as guardian...
But I really wanted to say thanks to you all, I didn't expect so many replies and kind words.