How to ignore those who hurt us, please help?

The people that you've mentioned have a bad attitude because they don't know how to appreciate other people's help and they have the guts to insult you. Better stop communicating and start to stay away from them so that they would feel that you don't deserve them to be your friends. If your phones have caller IDs better not answer it anymore if they are calling. If they come to your place tell them that your going somewhere else and can't entertain them. If you want you can change your phone numbers from the telephone company.