Dismanglement 

The untwisting of ones mind in the attempt to understand what one thought someone said without that someone recalling what it was.

There she sat in dismanglement after believing she thought she heard what he thought he said.

Dismanglement by Frank Podesta &Frank Rosado October 21, 2019

dismantlement 

The state of being dismantled.

Right now this engine is in a complete state of dismantlement.

dismantlement by Squirrelking July 12, 2006