Rawb - thanks for responding!
Please find the answer to this. IMO - this is the absolute number one reason why I remain Catholic and believe all should be united - because Jesus Himself selected the leader of His Church.
The Father selected the head, and that head is Christ. I will try and find the translation issue. Let me try to explain from memory:
Christ asks “Cephas, do you
Love me?”. That word “Love” in either Aramaic or Greek meant something significant. If I recall it was a total self-giving and sacrificing love. St. Peter responds “I love you”, using a word that meant something like the love between friends. This goes back and forth between the two of them until Christ says “Do you love me” using the “love between friends” love. St. Peter, ashamed of himself, responds “I love you” in the self-giving and sacrificing type. In the original it reads as Christ trying to reunite with Peter after his betrayal, but Peter still acts ashamed, until Christ rebukes him by saying something like “you *only *love me that much?” and Peter finally relents.
The Orthodox are completely united - but by faith, by Christ, not by an earthly leader.
What parts of the world are traditionally Orthodox and were they influenced by certain Early Church leaders?
Let me think…St. Mark went to Egypt which is Coptic and Alexandrian, St. Andrew founded the church at Constantinople, Antioch by St. Peter and St. Paul, Jerusalem by St. James, and Cyprus by St. Paul and St. Barnabas. We’ve spread since then to Eastern Europe (Ss Cyril and Methodius being instrumental) and Russia, Georgia, Cypress, Greece, Romania, etc.
Okay, is the Divine Liturgy required on Sunday?
My Orthodox friend does not need to attend every Sunday because her priest told her that being with her family was good enough and that God understands that she is tired from working all week.
Is this true?
Required isn’t the word we would use, that link explains it. Your friend is either misconstruing what her priest has said, or there might be other situations in effect that we don’t know about. Or you may be right - she may have found a lax priest.
This same friend also limited her family size to two children due to the fact that she and her husband got married older and did not want to risk having a baby with problems.Would this be considered a reason for a priest/Spiritual Father to give them a dispensation?
It may. That would be up to the Spiritual Father’s discretion. The financial, physical, and psychological stress may be too much for her marriage, or their finances, or a host of other issues. We’re taught to focus always on our own sins, and not worry about what others may or may not be doing. There’s a saying we use about fasting that applies to other areas as well - “keep your eye on your own plate”.
I say this just to convey our own philosophy, not to presume to lecture you about what you’re telling me about your friend.
I don’t know - my friend feels very superior to me (she loves to remind us how strict their lenten fast is compared to the Catholics, among other comments claiming to be “superior”

) and yet seems pretty “loosey goosey” with some other things.
She claims it is the counsel she receives from her priest. Either he is “liberal” or it is not a requirement, right?
Or she’s twisting her priest’s words to hear what she wants. There’re too many variables for me to able to say for sure. All I can say is, from what you’ve said, your friend is not living out her Orthodox faith; a rarity in Orthodoxy, in my experience.