Unfortunately, it appears that monogamy is drilled into people's heads from a young age (I appear to be the one exception that I know of), that many appear to let the behaviors of competition and jealousy continue to rule their psyches. In that case, you could be the most kind, most attractive, most accomplished, most talented person on Earth, and it would likely only make her jealousy worse.
While I don't think it is unrealistic across the board to want the wife to be happy for you, it appears it may be in this case.
All of that said, Marcus makes a point. From whom are you getting this info?