Yep, I know. We all do it. Facebook has made it so much easier to be fake. But be careful - when we rely on Facebook too much for our fakeness, we may forget how to be fake in real life and end up in some awkwardness.
Honestly though (yes, really), it is probably easier to display emotion on Facebook and it is probably better to miss people when they're far away. We just sometimes prefer to keep missing people than to actually have them around. Hmm, it is a wonder that I have any friends at all.