Even if one isn't a Christian, as a matter of ethics, one doesn't divorce their spouse simply because the person is ill.
There just IS NOT a positive or Biblically sound way to spin this WHEN THE SPOUSE IS ILL.
Yes there is, when the spouse is dangerous!!
__________________ For it is written, "As I live, says the Lord every knee shall bow to me, and every tongue shall give praise to God. (Romans 14:11- NASB)