What are the dynamics of a MLC Affair? Does anyone know? What is the MLC affair "fog"? I've seen that mentioned a few times in some posts...

M: 34
WAH: 38 (in MLC)
Together: 11 years
Married since: November 2000
DS: 15
DS: 11
DS: 10
ILYBINILWY: Dec. 2009
Living separately since: April 2010