So i found an image in my news feed and i saved it (it was a topless chick) it was a ni...

So i found an image in my news feed and i saved it (it was a topless chick) it was a nice image i had no problem with it. But then i tried to send it to my friend in messenger and couldn't do anything on Facebook until a message poped up saying something along the lines of 'you tired to share explicit content, if you do this again you will be blocked' i can't work out why i should be getting this message from Facebook. It is a chat with just me and my friend who never got to see it, and it's a breech of privacy by Facebook invading our chat like that. I do not wish to be banned but i would like to be able to continue sharing content like this with my friends it's not like it's the first thing which is why I'm so confused. I've known lots of people to share nudes with each other on messenger and have no problems with it do why can't i send this? After all i saved the picture from Facebook in the first place