I believe you really want to get users to sign-up on Match.com, but it would be great if you can advertise smartly, especially online advertising.
If you are not aware, there is something called behavioral or audience based targeting. Every day, you target me multiple times as it I am a single guy, but a lot of my internet behavioral clearly shows that I am not.
Either you are using a lot of data (multiple sources) and the combination of all of those sources is not working. Or using no data and just targeting blindly.
My suggestion would be to just use plain audience based targeting and you will hopefully have a better return on advertising spend. Good Luck!