I'm getting a bit frustrated. Can someone point out where I can see what all these acronyms?!

OM/OW - "other" m/w. I get it.
MLC - obvious
LBS - Left behind spouse ( guessing )
DB - divorce busting
H - husband
w- wife
S - Spouse/Son
D - daughter

Unsure:
Bomb - seems to reference divorce, affair, separation, or whatever.
SBT - ?
DR - ?

The list is long and hard to follow......