I've read read a couple of pages on this thread and can see useful comments, as well as less useful comments.
Tell me, why are you dealing with marriage / divorce, in relation to sinfulness, differently to, presumably, judging by some comments on here, any other sin that one may commit, knowingly, or not?
Repented of sin is forgiven and will never be brought to mind, says various scriptures - so why put this question out on a limb for special treatment? There is no theological reason for doing this because G_d told us ALL not to sin, but we do - he even names some of the sins we are to specifically avoid, in scripture, but we break them. He didn't make a heirarchy of sin, in fact Yeshua said that if you break one teaching, you break them all. Leviticus Ch. 4 & 5 tell us that if you find that you have sinned (without realising it), then if you truly repent of that sin, when you realise it, it is still forgiven, never to bring to mind again, says G_d. I do not see, anywhere, in scripture, that God made a general rule with certain caveats on possible outcomes in the way marriage / divorce is being paraded on this thread.