I'm not sure where "in the eyes of God" divorces aren't real is to be found.
Among others, Catholics. If you adhere to the texts more than logic, Divorce is not of God's will.
Did Adam and Eve have bellybuttons?
Of course not.
Would they have been married? Technically, wouldn't it be masturbation, since Eve was one of Adam's ribs?
Technically it's Incest.
He had the chance to create better humans, but Adam decided he'd rather fuck his own offspring.
Also, it is never specified when sex was "invented" for bearing children. Sure, God decreed that Eve would have to get pregnant.
This would have more bearing if other mammals didn't also have the means of pregnancy.
Were Adam and Eve married post-Eden? Did they not have a lot of premarital sex?
They possessed ignorance of 'good and evil', so I guess people give them a pass?
Wasn't the entire human race now made from bastard ancestry?
Pretty much, but that's pretty classic Bible error.