you're always going to get chancers on dating sites, you just have to ignore them and look out for the ones who want something more. I've used dating sites and men do gripe about women displaying lots of cleavage, lying on a bed, with a write up saying "don't message me with anything naughty!" (I'm not suggesting you did this, but you can see what you're up against!) you get what you pay for with a dating site, the free ones are generally a nightmare.
I'd strongly recommend getting "out there", check out your local paper for local events and plan to widen your circle of friends, male and female. you never know what it might lead to :o)