I think its great you are working things out with your husband. I am very thankful you got rid of OM he sounds like a predator and took advantage of you when you were down. I know it is not an excuse but some men are like that. They purposely look for vunerable women. No offense but your SIL sounds like she may have a little crush on OM herself. I wouldn;t want to be around a pig like him. Who knows how many affairs he has had on his own wife. Maybe be she thinks she has a shot now at him. I dont know something just does not sit right with me in regards to the SIL. I hope that your husband's brother sees the light.