I can certainly imagine how distressed I would feel if my pastor called me into his office because he was told by another parishioner that I do not socialize properly.

As I posted previously, I agree that OP would be wise to change her approach. She would be wise to find other friends. However, I think the pastor may be exercising poor judgment in using his position to intervene in this matter. There is a great deal to be said for allowing young people to work out their own problems. Perhaps OP would be willing to speak to her pastor about these matters if she did not have the feeling that the pastor is acting at the behest of others.