I don't know if Tinder's popularity has hit critical mass outside certain socioeconomic groups (i.e. young adults in the United States, especially college students), but you should check it out for some inspiration and op research.

Grouper is another good startup that is attempting to break the dating paradigm. They combine intelligent matching with "group dates," which is really just a hangout session at a bar with three guys who are friends with three girls who are friends. It takes the sketchiness element out of the equation for women, and preserves more of the current cultural trend away from formal dinner dates.

If you're outside the US, it's also possible that the US competitors might let you see a space that's wide open in your country, or vice-versa.

Once again, congratulations on building something, that clearly your users want. It's so easy to criticize and so hard to create, so please understand that any feedback is meant to be constructive and is only my subjective opinion.