A cliffhanger
A cliffhanger is when you promise a big reveal but drop a single clue and vanish like a ghost.
'I’ll tell you the secret tomorrow!' Then they blocked me. I screamed into my coffee.
They said, 'Just wait a bit,' and went offline. I threw my laptop at the wall.
They texted, 'I’ll tell you soon!' Then they left. I cried over a bag of chips.