Define But You Never Know Meaning

But You Never Know
A phrase used to add to the end of a conversation, when you have just realized you crushed the person's hopes and dreams.

Kid 1: Man I wish I could get back with my ex you know...

Kid 2: Well she's back with her ex-boyfriend, and hates your guts.

Kid 1: ...

Kid 2: But you never know...

Kid 1: I know huh.
By Ula