Pip's night at the theatre only increased his anxiety because he saw Compeyson there. Compeyson is a criminal, a swindler and a counterfeiter. He is a ruthless and selfish man who pretended to have feelings for Miss Havisham. He left her at the altar on their wedding day and took off with her fortune.
False - there is no subject-verb disagreement as "...my siblings are coming to the party" is correct. It is plural as in "are" because the nearest subject is plural as in "my siblings".