Hello Nimbus - your experiences sound extremely familiar to me and I'm sure many of the other single women on the site.
I went through the same feelings of not wanting to go it alone and had a couple of single male playmates. And like you it was one of them who introduced me to this site (though he doesn't actually use the forum). But since joining this site - I have come to feel quite differently about things.
Going to my first Munch alone was extremely nerve wracking indeed. No matter what others might tell you about how welcome you will be made to feel (and you really really will be) I still had to go with no finger nails as I'd eaten them all off. But after attending 3 munches now I'd say I'm less nervous about going alone than I would be about going to a pub in town.
Although I'm not explaining it very well - I think I do feel exactly as you might. Firstly that I was appearing to be a fraud by presenting myself as a couple when really we were 2 singles playing together and secondly that I quite simply did not want to play on my own - the thought of meeting a couple as a single female did not appeal.
Since joining SH I have met so many folk who are useful for answering stupid questions and bouncing ideas off that I am now happy being a single swinging female - and so much more confident and able to explain to people what my relationship with my playmates is (can never think of a suitable word - surely FB is not the best we can come up with!)
Okay sorry rambling now so I'll shut up but best of luck. I'm certain that there is no better place to find your feet and make the right decisions.
Cheers
CQ
why should you be so nervous? A munch is like a party, its a social event where we (the members) can meet and say HI for the first time and have a laugh.
As regards single or not, yes i class myself as single, i do have a buddy too but thats personal choice she's bi and has her life and i have mine.