Hmm, I didn't see a lot of good open source dating scripts. That's probably because there's a lot of money in the space, and you can charge good money if you have a clone script.
I saw two commercial options that were a couple of hundred dollars. Search for "match dating clone" or "match dating script" Can't vouch for them though. Drupal's usually another non-techie option to build a web site, but dating support is lacking.
You'll need to get a developer involved if those commercial options don't let you do what you want.
Here's some inspiration from the author of Mingle2. He spent 66.5 hours to build his dating site:
http://mingle2.com/blog/view/how-i-built-mingle2