I must say, I'm slightly bemused by this whole thread :)
First up, a general principle: a SP's relationship status is none of my damn business. None whatsoever. I've had one or two ladies have mentioned it to me at times, but it has always come from them; it's not a question I'd ever dream of asking.
Secondly, as regards things that SPs may or may not do based on their current relationship status: I simply don't care. I judge SPs based purely on how much of a good time I had while I was with them, and although the specific things that we did or didn't do may be part of that judgement, they're by no means the full story. And if something I care about didn't happen, it doesn't matter whether it's because the SP doesn't ever offer it, or just doesn't do so right now because it's reserved for her relationship with someone else, or just didn't choose to do it with me. Her reasons, whether I consider them good or bad, and whether they be temporary or permanent or spur-of-the-moment, are once again none of my damn business.