Closely related to the word Heisendate.
The effect created between two people who were dating when one issues the terms of "needing some space" or "being on a break" or "needing time to sort things out".
The word is a combination of Heisenberg, the scientist famous for his Uncertainty Principle, and the word dumped.
Well, I might be single. I had a boyfriend but the other night he Heisendumped me.