I don't want to veer off too far in this direction. It didn't go well last time, and I don't have high hopes of getting you to understand, because you seem to have a very particular perception of what BDSM is, and your posts suggest that you're conflating it with both promiscuity and actual compulsive sadism. I, and so many others have tried to explain how mistaken that perception is, while you seem neither inclined to listen or care.
Try to understand, I'm not referring to practices of the BDSM community when I talk about the aspects of that fictional relationship that I consider unhealthy. I'm talking about the aspects of that story that represent BDSM incorrectly. Among other emotional aspects, the male lead's proclivity towards BDSM is eventually revealed to be actual sadism, fueled by a need for revenge.
When you say "seem to go much further," you point a spotlight on the issue. Your perspective of BDSM seems to be an invention that you've constructed inside your head without actually looking at the reality of the BDSM community. You didn't know the plot of the novels, leading me to conclude that you don't actually know what that relationship entails (and yet you cast judgement on how far it goes). Every time I've seen you bring up BDSM, you've demonstrated a confused interpretation of what it is, even so far as saying that it's actually connected to promiscuity.
If you really want to know, consider reading this (the tv tropes article on the issue, which isn't the most analytical approach, but is approachably written):
http://tvtropes.org/...neAndConsensual
There are plenty of other information sources available for you to look into as well. And with that, I think it's better that we drop it.
I think you and perhaps others hold this fantasy of a "safe" place to practice BDSM but there is no safe place anywhere in the universe, here, there, anywhere, BDSM or otherwise. I don't know, consenting to something doesn't necessarily make it fun either, personally I'd rather my relationships be somewhat insane and unsafe, otherwise they wouldn't be interesting, not to mention I can't fathom how anyone could call one kind of sadism actual and the other fantasy or something, it's the same thing.
As for being connected to promiscuity, well it could be connected to promiscuity. BDSM isn't a hivemind, some people intermingle it with sex, some don't, if I had to guess, most do though. Sex isn't a hive mind, period, everyone has very unique tastes and preferences. It's the same with homosexuality, or transgenderism, or any variety of other things, you can probably find just about anyone doing just about anything. I think the fact that I can grasp that indicates that it's quite the opposite of something I constructed in my head.
I agree though I don't really know where this conversation is going, I think honestly when it comes to these topics Bioware is going to make the same basic characters but switch the labels around, which I don't think is really going to satisfy people overall unfortunately.