[hmm, i wonder who do you mean? i was unaware of any link between you and anyone i may have had tenuous connections with]

Yeah. I can appreciate that analogy. Some people seem to have only relatively short gaps between relationships; other people remain perpetually single-but-looking. (I exclude people who are single through choice from this analysis). I wouldn't want to think that this is because the people in set A are any better. But it's a very easy thing to believe.