Well, if you're tired of feeling this way, I think I may have found the solution....Google+! Google+ represents something of a Social Restart button. Instead of going through and slyly "de"-friending people (that honestly probably never was a friend in the first place), now you can just move onto to the fresh start and greener pastures that is Google+.
Not to mention Google+ has a simple and easy way to move people that aren't as close into a separate category called "Acquaintances". Because isn't that what 90% of Facebook friends are anyway......just Acquaintances.
So.....if your looking for a new Social Rebirth to go along with that degree your striving for,
Here's a invite link to get you started: https://plus.google.com/i/_IspoBj7YP4:nuJGxYj7G6k
P.S. - I know this kinda sounds like a commercial, but no one paid me or told me to say this. Facebook has just been making me mad lately.