Unfortunately, once they cross that line, some people decide "well, i crossed the line now, so here's where I am", and decide that they "cant go back".
Dom R,
Just another thought... I think part of the problem with these people is they do not want to go back to their spouse to actually face the pain they caused... They also do not want to admit to family and friends what they have done.... I think it is another way to avoid taking responsibility for one's actions....
No_More_Dodo
"Chains do not hold a marriage together. It is threads, hundreds of tiny threads which sew people together through the years. That is what makes a marriage last --more than passion or even sex!" - Simone Signoret