That time many have been through in the past; the end of a a relationship. Offline it was easy, you just avoided them, or even moved away. Nowadays, many people are online, and on Facebook, so it's tougher to avoid people if you're Facebook user. Clearly, there have been enough people on Facebook in the position of ending a relationship, for whatever reason.
Here's Facebook's test on making it easier to avoid someone, which is being rolled out to U.S. on mobile. Facebook says it'll review the test and may roll it out further based on feedback.
Starting today, we are testing tools to help people manage how they interact with their former partners on Facebook after a relationship has ended. When people change their relationship status to indicate they are no longer in a relationship, they will be prompted to try these tools. Facebook Tests Tools to Better Manage Relationships Ending [newsroom.fb.com]
Here's one of the screenshots showing the test options,