Mr. Ross then forces Rigby to admit the truth while holding Mordecai hostage : he never got into College U .
Mordecai did and Mordecai created Mordecai 's fake rejection letter in order to maintain their friendship .
Mr. Ross then forces Rigby to admit the truth while holding Mordecai hostage : he never got into College U but Mordecai did and he created Mordecai 's fake rejection letter in order to maintain their friendship .