I do this as a service to fellow Catholics who frequently are inundated with the venomous lies of certain orthodox.
All the accusations of schism and heresy coming from them are projections
You yourself claimed infallibility on behalf of Ecumenical Councils, and yet will not acknowledge that the violation of the decree of the Holy Ecumenical Council of Ephesus, which forbade changes to the Creed, was the occasion of the schism between the Patriarchate of Rome and the Church. We have been able to maintain Orthodoxy despite occasional heretical occupants of major sees. You recite a Creed which violates the solemn decree of an infallible Ecumenical Council, and have the gall to claim your Patriarchate is free from heresy. Rome was out of communion with Constantinople already in 1054 over the issue, having been removed from the Diptychs of the Great Church in either 1009 or 1014--depending on whether the use of the heretical filoque became known through the (no longer extant) election encyclical of Pope Sergius or the cornation rite of Emperor Henry II, which is unclear. The mutual anathemas were a result of a failed attempt to restore communion.
The wetched attempt some Westerners made to fix the further heresy of created grace (the doctrinal error which actually occasioned the "reformation" when it was used as a basis for the sale of "indulgences"), unlike Orthodox corrections to errors among our hierarchs, which restored unity of faith, only led to further schisms and worse heresies.