You can unblock someone on the Instagram app from Settings or their profile, and they won't be notified.

You can easily unblock someone on Facebook Messenger in the "People" preferences section of the app. Here's how to do it.

Look, I’m just going to say it: People can be assholes. Whether it’s someone cutting in front of you in line, an employee who just refuses to be helpful, or just a plain ol’ narcissistic person who ...