Well, then your nephew is sensitive and the only thing he knows how to do right now is unfriend anyone that rubs him the wrong way. That's become a trend now with this facebook and the younger generation his age.

It's also important to keep in mind that when someone grows up under the influence of a narcissist, they can learn to use some of the behaviors this narcissistic parent used and narcissists are famous for "cutting people off" when they are not getting their needs met or their self esteem built up. Also, if he is just a freshman in college, he still has some insecure narcissism himself because that simply where his maturity level is at right now at his age.