But they are still being saved in their church and they are not less of a saint while being in their church as long as each individually accepts and strives for the truth and teaches because it may not be the time for unity which even though it always is it is not until those responsible are convinced to make it happen and if one converts one may worry about offending a family member who is not mature enough to see the good of your decision if it is ever good
If we stop condemning each other for being in other churches there is no scandal if one converts to the other but I think you should decide wisely if you will convert because it is different for each case people do not have to convert to the other but rather reform their own churches. Maybe they should wait till the churches unite. If you are married to a person from another church I hope you can each take communion in your own church or choose a church together and spend time in both churches or one.
Some orthodox accept the roman pope as first among equals
I know orthodox think st Cyprian considered him and his bishops as peter from his writings and I buy into that but we can not know. Paul before preaching had to get approval from all the apostles and cephas before he preached maybe he thought his vision could have been a hallucination. Paul rebuked peter even peter can stumble but he is capable of being infallible but not guaranteeed as Paul wrote he who is spiritual judges all things and is rightly judged by none
But that may not take away From peter having the primacy of honour. The roman church has primacy of honor and is the true pope but orthodox are still completely apostolic and lose nothing from independence because he is the first among equals. But for the sake of the world we are both guilty of no unity and perhaps the roman pope is first among equals I do not know. The world is still responsible to accept Jesus but we help them more by an extra kindness which is God intention and to have opportunity to follow Jesus on earth. As Paul said when all or most the Jews accept Christ which is their fullness how much more will benefit compared to their loss. And in a sense the church witness is not full but both in the churches are still saved