When on snapchat someone opens your snap and doesn't snap back

when you text a person and they have seen the message but NOT REPLAY!!!

The highest level of disrespect a human can recieve.

When someone doesn't text you back in a appropriate amount of time but will still post shit on social media. He's not into you

When someone reads someone's text, but does not reply.

When you text, snapchat, dm, inbox, etc. someone and you wait a little for them to answer. And you see they opened or read the message and they don't answer for a while or even at all.

When you text someone, they see it, but they dont text back.