Copy OkCupid and JDate !!!!!!!!!
Lots of more in depth questions, more general info, ability to have secret admirer, etc
And make it possible to add "private questions". in other word, make a large set of very personal question about ***, marriage, money, etc that you can answer but only allow someone you are very interested in to view!!! Best if there would be a check box, yes profile xx can have access to my personal questions and answers and I can see his responses, and that we could also uncheck that box if we so choose.
Lots of room to grow here... stiff competition