So... we throwing X a goodbye party or what?

He does not, irrelevant one. Your arrogance and stupidity are breathtakingly obvious.
You obviously need daily reminders of how important I am, my junior colleague x can do the honours
 
Maybe it'd cheer you up to think of it like this: If someone (like X) says they're leaving but then don't isn't it possible that someone (like jack) who says they're staying could leave?

Small chance I know but better than nothing.
Hillbilly speak. Please translate