Back in the day, you had to sit at home waiting for your rotary phone to ring in order to find out what your crush was up to after your first date. Now, we have the Internet, which is a whole lot more incriminating. Facebook dating is certainly not for the faint of heart. If you're looking for love, you might want to steer clear from making a few key mistakes on Facebook that might cost you that second date. Of course, we all know how obnoxious it is to update your relationship status too soon, but there are many additional Facebook faux pas that you may not even realize you are committing.When was the last time you stalked your crush on social media? Even the stealthiest of Facebook sleuths have accidentally deep-liked an old photo from yesteryear, or accidentally sent a friend request to their crush's ex girlfriend. Oversharing, humble bragging, and publicly fighting are all wall post crimes that can happen to you. Check out this list of online dating advice below for some of the main Facebook fails to avoid in a brand-new relationship. Vote up the tips that make the most sense, and be sure to let us know what you think in the comment section.