This doesn’t really mean anything if they agreed to a divorce, one or the other had to do it and generally use that as a reason. Until 2022 you could only get divorced with ‘fault’. Which means one person would petition the other for divorce and have to cite a reason. “Unreasonable behaviour” was a catch all so it doesn’t mean he specifically did anything ‘wrong’. Of course he could have done it and claimed adultery but he would have to prove and document it, people often avoided this to stop details of their lives being made public.
“Until the new Divorce Act takes effect, under current divorce law, married couples looking to divorce would prove the irretrievable breakdown of the marriage. This was evidenced through one of the following facts being proven:
- Adultery
- Unreasonable behaviour
- Desertion by one party
- Two years separation with the consent of the spouse; or
- Five years separation without consent.
These facts mean that one party made an application against the other for a divorce to take place and it could not be through mutual agreement.”
He’s still a prick but in his head this is probably another example of him being a good guy by allowing her to lodge it.