Jesus words are very clear to me:
Matthew 19:9 And I say unto you, Whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and whoso marrieth her which is put away doth commit adultery.
You can only divorce ONLY if there was fornication. Period.
Jeremiah 3 (KJV) Jeremiah 3:8 (KJV) and
1 Corinthians 7 (KJV) does not give any exceptions.
How can it be not a sin?