Here's the link addressing the OW/OM in an affair & why they usually don't make it long term.

http://www.goasksuzie.com/3a_infidelity_other_woman.html

M-7 yrs
together-8 yrs
S-4yr
S-15yr

Bomb-4/25/07
Sep-same day
me-49
H-49

http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=1510033&page=0&fpart=1