In my experience, "I need space" almost ALWAYS means "I want space in which to conduct my affair, unencumbered." Very, VERY few, rare individuals (less than 5%?) really use the time and space to remain detached from BOTH their spouse, and their OM/OW, and do honest introspection.
Couldn't agree more.
Me 35/XW 33 S13 & S12 M: 10/17/98 OM & S: 07/08 D final 06/09/09 12/03/09 - 06/13/10 "Piercing" 06/13/10: Engaged to Re-marry 10/17/10 06/25/10: Expecting baby #3 2/14/11
