Is it, not what he kept repeating but more partners should respect each others opinions/views and if a situation occurs where it goes ballistic because she made an error then it shows there are issues within the relationship, humans are never perfect and sometimes a person may look for a way out of a relationship without feeling as if its there fault.
I feel for your heartache hun, but if it ended then it shows he lacked the understanding that everyone makes mistakes but its the way forward from the bad error you made that makes a relationship…hope that sounds ok, long time since i chatted..lol