I don't think they'll get divorced.
And i dont wish for it too.
Plus, isnt the criteria for divorce only adultery? It was told in few of the episodes i think. One person must commit adultery while the other person has to sue for divorce. Either of them certainly wont cheat.
Or will that law get changed too?
In any case, I don't think from what I've watched so far that this will be the end of them. I speculate that they will have extremely low points in their marriage throughout the next season, and then end up reconciling after Bertha fixes her ways to some extent.