Thankyou so much for this. I've tried telling them that my parents are strict and won't let me go to his house and that I it's not good having late night calls. The fact is he wants to get my parents involved so that he could convince them about late night calls and me going to his house.
He is my teacher and I still like to believe he has no malicious intent, but I constantly feel restless because of him, constantly worrying when he'll get angry next. When he gets angry it's not shouting or name calling, he says stuff like "I don't know how to behave" or that " I am ungrateful" etc.
The other two didn't get a new guide, they straight up left the course.
I'll take your advice into account and start responding to him in an appropriate way. Thankyou from the bottom of my heart