Online dating

I have registered for an online dating service to meet men I can't seem to find. I have received several matches and now question this compatible selecting process. I keep getting matched with men exactly like me. Married couples I know are polar opposites, every one. I'm unsure how well a romance is going to work dating my twin. Ya know what I mean. Example: If you considered yourself very timid and shy, wouldn't you desire someone who is more outgoing than yourself. That is probably why there are no sparks between me and my matches. I paid for a month so I have to see what happens. Then again it could be that there is no man meant for me like everybody around says. Post later. Bye.