When you start dating someone you really like, it's easy to get wrapped up in the romance of it all: candle-lit dinners, hand-held walks in the park, and deciding on a name for your first born (don't pretend like you haven't done this). Jumping in head-first in the beginning is easy, but the bottom line is, don't go overboard on the mushy stuff online.
Since your love is new, you might have a tendency to announce to the world how you feel about Mr. Right via a few status updates. This is cute and all, but not everyone wants to know your pet names for each other, how much you miss being without them, or in what ways he completes your life on a daily basis. This is why the Facebook gods built private messages, and let me give you full reign to use those babies to your hearts' content. Want to pour your heart out? Send a PM.
Don't get me wrong, announcing how much you appreciate someone is awesome, but don't let it get to the point where your friends are gagging in front of their computer.