I'm also a happy singleton - been single since October 2011 - and would not change it for anything. I can do what I want when I want (within the boundaries of being a single mother though my son will be off to Uni next year).
Are your friends the sort of people you can be really blunt with. Basically telling them that you can not moderate, it has to be nothing and if they were good friends they would respect that and support you?
I honestly don't mean that in any sort of facetious way. I haven't had any proper friends in ..... well .....ever, just variations on acquaintances, so don't fully 'get' how proper friendships work.