I have been in love too and when the relationship is going bad couples are supposed to talk about it and you'd be much better off talking to a therapist every week than cheating on your spouse. You are giving this woman a free pass for cheating Darla and deciding that she must be right that it was his gambling that caused all this. If she didn't have the gnads to belly up to a therapist or a divorce attorney BEFORE fucking around then the third parties beware.
Soc, you are usually a very insightful poster who nails most things correctly.
You couldn't be more wrong here, IMO. The only people responsible for honoring the vows they took, are the two spouses. Third parties are not responsible for honoring those vows. Pointing the finger of blame at temptation is a cop out. This woman - or any spouse who does so - made the choice to cheat on her vows. Its not the third parties legal responsiblity to honor anyone's wedding vows. It may be tacky and inappropriate to hit on somebody eles'e spouse, but its certainly not legally wrong.