"Hey, there's nothing wrong with being addicted to Facebook! :)"
I do not use my account nearly as much as my colleagues. I know some who are on it for hours at a times.
I was at first. My school wasn't added until last October so we were all OBSESSED with it when it first came out. I don't usually spend much time on it anymore, I just check it. I spend way more time on FR than on Facebook.