I look at the LD/HD designation a few ways. Usually I just look at relationally. Are both partners happy with the amount of sexual contact? If not, one is is HD and one is LD within the R.
I also look at what is considered a healthy amount of sexual contact on the average (or even what has been shown to be clincally beneficial) - that is about 2x/week. That amount seems to lower people's disease risk, depression etc... More sex doesn't seem to lower it any more. So, if a person wants sex more than that amount I would consider them pretty HD. If someone wants it less I would consider them fairly LD.
Mostly, I don't worry about the labels because they aren't that helpful except as a shorthand way to identify ourselves on this forum.
