Othello pre reading dating game
The Imperial scholar Quintilian considered him the last of the Latin love elegists.
NOTE: though the trope name includes "kills", no death has to happen.
This is also an all-too-common occurrence in Real Life, where many real life tragedies could have been avoided had the right people shared information that could have prevented it, but didn't for all kinds of reasons.
In order for this trope to work, the misunderstanding or miscommunication needs to have a reason to occur, best borne out of the natural characterization of the characters involved.