Yes, if a marriage cant survive problems there is something way more wrong with it long before now, causing it problems.

It has to be difficult not knowing the exact cause of the marriage failure. I tried to be specific when I left my H after 33 years. It was difficult because it was the same personality issue I had before the marriage that had caused me to seriously consider cancelling the wedding in the first place.

Relationships are complex. Not easy to figure out. Hope you get through this greiving process & soon see light & peace