It's pretty common to the point of being cliché that "we opened up out relationship" will fail. Usually the people involved are going to come at it in an extremely hierarchical way. Often there are existing problems that aren't being addressed. It's almost at the same tier as "let's have a baby to save our relationship"
People who are non monogamous from the start I expect have similar success rates as anyone else.
It's pretty common to the point of being cliché that "we opened up out relationship" will fail. Usually the people involved are going to come at it in an extremely hierarchical way. Often there are existing problems that aren't being addressed. It's almost at the same tier as "let's have a baby to save our relationship"
People who are non monogamous from the start I expect have similar success rates as anyone else.
I pretty much agree.