Yes ! He is married within himself. I do not mean that he has a marriage certificate
Here is how I came to this conclusion.
Gen 1:27 says: "God Created human beings in His own image; male and female"
God's masculinity and femninity are in perfect harmony. We can say that an ideal married couple reflects the image of God.
God is also our Father and Mother in Heaven. We are His children.
He is our Heavenly Parent, but we call God "Father" because masculinity is His subjective nature.
Gen 1:28 says: "Then God blessed them and said become fruitful (mature) and multiply. Fill the earth and govern it."
God wants us to become ideal husbands and wifes, ideal parents like He is
In conclusion, God wants ideal families. The Kingdom of Heaven on earth is made of ideal families.
Unfortunately the first family (Adam, Eve, Cain, Abel etc..) ended up not being and becoming a true ideal family as God had hoped for. Still His will and purpose are unchanging.
Jesus came as the second Adam to restore the mistake of the first Adam and establish the original family God wanted in Gen 1:28... but his life was cut short.