How to see everyone who’s unfriended you on Facebook (and everywhere else, welp)

In the era of the quantified, commodified “friendship,” there are few slights so keenly felt as the unspoken, unacknowledged unfriend. Now, for better or worse, you can revel in your own rejection: Who Deleted Me, a recently relaunched app for iOS, Android and Google Chrome, tallies in real time all the one-time friends fleeing your Facebook feed.