I've been 'single' for five years now after spending 7 years (5 married) with a shitbag.
Whilst it's definitely true that the hideous experience with that man has made me wholly distrustful of men generally, I have now settled well into being very happily on my own.
I love being a mum to my ds (5) and have a decent network of friends which I have worked hard to build up. I make sure that ds and I get out and do stuff, and we are very close. I invite friends round regularly for barbecues or suppers, arrange pub lunches at the weekends, often have ds's little mates home for tea after school and have a lodger to help financially and to give ds the sense that the house is 'fuller'. We have a dog too.
It seems to me that other people have a problem with, or are curious about, me remaining single - but it's usually those who are in happy relationships. Those who are not, tend to be a little envious sometimes?
Op, do you have children? I think if I had not had ds then being permanently single would have been much harder/lonelier. As it is, I'm not lonely; I enjoy my own company, like cooking whatever I want, and after ds is in bed enjoy being able to sit around smoking fags, watching crap on the telly, surfing the internet, going on the swing in the garden at midnight, eating garlic curries and skyping friends.
Oh and I don't miss sex at all which is a BIG bonus - but I accept that lots of others would do, and this is what they would loathe about being single.