Here are some of the most commonly used abbreviations. Feel free to add to the list. :)
A - affair
AP - affair partner
BF - boyfriend
BS - betrayed spouse
D - divorce
DD/DS - dependent daughter/son
D-day - discovery day
DH/DW - dear/devoted husband/wife
EA/PA - emotional affair/physical affair
IT/IC - individual therapy/counselling
MC - marriage counselling
BF/GF - boyfriend/girlfriend
LDA - long distance affair
LTA - long term affair
MM/MW - married man/woman
OW/OM - other woman/man
SD/SS - step-daughter/son
SW/SM - single woman/man
STBXH/W - soon to be ex husband/wife
WS - wandering spouse (or wayward spouse)
Kim
Love 
