Getting divorced goes against the promise of being there "through better or worse, in sickness and in health".
That's a brutal suggestion even if your intentions were good!
That's a brutal suggestion even if your intentions were good!
(If you read "may want to divorce to avoid their medical bills" as "you should break up with them", I don't think you interpreted the suggestion correctly.)
OP should talk to an attorney familiar with creditor and estate law.