Did You Know Who The Other Woman/Man Was?

Did you know who the other woman was in your husband's/wife's affair? If not, did you try to pry around to see who it was, or what she/he was about? I'm sure that you wondered what SHE/He had that was so wonderful that your husband/wife chose her instead of you. This was so true with me. I wanted to know what was so great about her....why did he want someone else? Was she pretty? Did she have something spectacular? Most of the time, they don't....they are just normal looking women/men. In my ex husband's case, his other woman was bigger in weight than me, and she was not pretty at all. She was just an average looking person. Actually, it was someone that I did happen to meet once, and he told me about her a long time ago, but it was someone that he met during his work day, a customer. They became friends. She knew all about me. She knew all about our daughter and even saw us at the grocery store on occasion. I wondered for so many years about her and the whats and whys of why he did this to us, but it didn't matter because it was already done.
He is with her now and seems to be happy. I honestly think that he has better communication with her and that's one thing that I can see now. They both speak the same language because they come from the same country....but his second Other Woman? I don't get it at all. She knew me as well....I even helped her out by taking her to work some times. Now what did he have in common with her? Totally nothing, except for the fact that she was always in need.......money, rides, and you name it.
Did you know the other woman?