Jay - My guess is that some man swept her off her feet and promised her the world at a time when her marriage was crumbling and not happy with her life. Then after this man crushed her, she came back hoping it could all be swept under the rug and return to her old life.
How you respond is up to you and what you want for your kids. I would say that you are doing the right thing morally - allowing her back into the family... BUT - she does owe you an explanation, what happened (but avoid the details of any affair at all cost - that could cause irrepairable damage to your thought process), why it happened and what needs to be done to prevent it from ever happening again - you and your kids cannot be hurt like that ever again.
Me:40 / W:33 / D:3 T:7.5/M:4 D Day: 1/24/08 Legal Separated: 6/12/08 BF who sleeps over: confirmed 11/10/08 Suspect BF pre-dates D Day
