Do messages disappear when you block someone on Facebook?

If you block someone on Facebook or Messenger, you both will not be able to see each others activities and also not be able to send messages. Old conversation will be still in inbox but name of that person will not be clickable.

Can someone still see your message after you block them?

They can still read your messages if Messenger blocked, just not reply. They can’t see your messages anymore if you blocked them fully. When blocked fully, your messages will be replaced with a ‘this user is not available’ text or similar instead.

When you block someone does it delete your messages with them?

Blocking someone does not delete anything it simply stops them from contacting you. Any conversation you have had with them will remain on your device until you delete it.

What happens to Messenger messages when you block someone?

According to Facebook, blocking someone on Messenger means they won’t be able to talk to you through Messenger or desktop Facebook chat. They can’t call you or send you messages on Messenger or in a chat going forward.