Can you accidentally block someone snapchat?

— According to the official instructions, once you have blocked someone, the app...

— If you send a picture to someone and then block them, they will be able to see...

— The only thing you could try is adding her back. Use the 2Go feature and try...

— You can't really know if someone blocked you on Snapchat, but there a few signs...

— The picture will be visible as long as there are contacts online at that time....

— No. If you deleted your account, all your sent snaps will also be removed....