Point of clarification: I think the OP in post #141 was referring to the story in post #140, not her own story. (Funky, if I'm wrong, please correct me.) Although when you read closely, post #140 also does not mention the presence of physical abuse in any way.
I agree that abusive relationships need to be fled from. However there are many relationships that are struggling because of a variety of other issues, like infidelity, poor communication, faulty expectations, financial pressure, family interference, differing assumptions and perceptions, to name a few. These relationships can often be repaired with strategies like counseling, twelve step programs (they're not just for the chemically dependent any more, you know, we can all benefit from that kind of personal analysis and reformation) and other modalities. Although it takes openness and willingness by both parties, each of us can only control our own behavior; however if we change our individual approach, it gives space for the partner to also change. Wouldn't it be a good feeling to be the one that "started it", when the "it" was reconciliation, rather than a fight?
Nothing quite like doing the same thing over and over again, expecting a different result. I think that's a particular definition of "insanity".