Last updated on December 4, 2020
If you change your relationship status to Single, Divorced or remove it entirely, nothing will be shown on your timeline or in your friends’ News Feeds.
If you change your status to in a relationship, it will be shown on your timeline and in your friends’ News Feeds. To limit who can see your relationship status, you can change your privacy settings.
Source: https://www.facebook.com/help/526974997467431?helpref=uf_permalink