It wouldn't be a perfect analogy by anyone's measure, unless you think that women are married to men who are married to Christ who are married to God. I believe the purpose and meaning of that passage is that if you are following Christ you are following God. There's an order to things.
As such someone who would say "I refuse to follow Christ, but I follow God" would fall outside of this order.
Likewise, following Christ does not take you outside the domain of God. In fact, it is the intended order of things that we shall follow God by accepting Christ.
It creates no dilemma that Christ was God manifest in the flesh, equal with God, and as Thomas so well put it, "Our Lord and our God." But we are to follow God as he wants us to follow him. In this case, as he has revealed himself by his name Jesus.
I have to disagree, to me when Paul says that God is the head of Christ, he means just that, and when Jesus says that God is his God, he means just that, and when the apostles say that God is the God of Jesus Christ they means just that.
But, I wouldn't judge another person regardless, only God can judge any of us.
If there was someone who believed in the trinity, yet their heart was wrong and they loved their life in the flesh, putting themselves first before God. Then you had someone else who doesn't believe in the trinity. But is humble, has truly repented, follows Jesus, has faith and loves God with all their heart, living to do his will. Which one would be more justified before God? (Also it's the same vice versa).
Then take all those from all denominations who, through Christ have faith, who are walking in the spirit, who are truly living by the will of God and love him from their hearts, those who are trying to deny themselves and are turning from sin and obeying God and Christ, and you have the body of Christ. They are those who the have the spirit of Christ in and through them who are worshipping God in spirit and truth, who are doers of the word not hearers only. It's not what denomination we are in, it's the heart that counts.
I believe that God looks at the heart and he knows who are truly his.
1 John 4
Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God. And we have known and believed the love that God hath to us. God is love; and he that dwelleth in love dwelleth in God, and God in him.
Romans 10
That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved
Acts 16
And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.
1 John 5
Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.
I believe in all the above verses, nowhere in the Bible does it say that i must believe that Jesus is God, or That I must believe in the trinity to belong to God.
And I do believe that Jesus is the Christ, and that he is the son of God and I believe in my heart that God has raised him from the dead.
Jesus said life eternal is this, to know the only true God, and Jesus Christ whom he has sent. And I believe him and i do know them, and I believe that God will judge me on what I have heard and by what I do in relation to that, and in how treat others and in how I live before him.