How did this affair become public knowledge? Did you tell someone? Were you caught together? Someone told someone obviously.

It doesn't matter if you were the 4th one he cheated with or 104th , Maybe you are the only one he has cheated on her with that she can actively try to hurt you job wise and emotionally? Maybe the others she is unable to track down.

Whether she stays with him or not is none of your business.

As far as her husband contacting you. Tell him in no uncertain words that you are not interested and never will be. Stop answering your phone if he calls , don't respond to Emails and by all means cut any and all contact with him across the board.

So you worked out things with your BF now husband ? What does he think of the "bf"? Is he still in contact with him? and if so , why on earth would he be?

As for you Facebook fake accounts drama.. make your page private, if you get an invite from someone you don't know, Don't accept it.

Your sorry and have shown remorse, which is the right thing to do... But saying your sorry doesn't always fix things, maybe down the road a relationship with your Sister in law will be possible or maybe what has happened is something she will never be able to get past. I do hope that she and her brother are able to salvage some sort of relationship out of this mess.

Wish you the best