This will prevent Pete from sending you messages, friend request or from viewing your profile. They will not be notified. Comments on discussion boards from them will be hidden by default.
“That was the year, my twenty-eighth, when I was discovering that not all of the promises would be kept, that some things are in fact irrevocable and that it had counted after all, every evasion and every procrastination, every mistake, every word, all of it.”
―
Joan Didion