I’m talking specifically about marriages and drawing an analogy to the study about “couples.” In either case the specific behavior is still about horning in on someone else’s relationship. It’s not that complicated. And I would disagree that all “relationships” are impermanent. I know many lifelong unmarried couples who are very much committed, short of a state license. So just because someone isn’t “married” doesn’t mean a neurotic interloper wouldn’t be attempting to ruin what for all intents and purposes is a “marriage,” whether sanctioned by the state or not.
question: would not the success of the relationship breaker (at least in part) be based on her ability to offer something the current woman was unable or unwilling to provide?
Depends on what you wanted.
In the end, it seems it is all about the maturity of the people in the relationships.
It is a paradox. If all of the good ones are taken and you have to be taken to be “good” NOBODY is good until a leap of faith happens..
ahhhh amore....