Why does this irk me?

One of my co-workers came up to me today and asked me about the diet that my wife is following. When I found out the reason she was asking I was kind of irked. What she was looking for was a way for her husband to loose weight really quickly to win a contest at work. She said that her DH is in a “biggest loser” contest, and he’s lost 40 pounds through healthy living and good eating, etc. He and the other contestant were apparently neck and neck and he had a good shot at winning the $300.00 pool. He then found out that his opponent got the stomach flu and lost six pounds in three days! She told me that The final weigh-in is in six days and he’s considering a crash diet to even the odds. She said that she had heard that my wife had lost 25 pounds very quickly and she figure it must be some sort of crash diet and wanted to know the details. She really seemed more concerned about the fact that her husband might have to write a check for $150.00 if he looses than anything else. I don’t know why but it just bothers me. My wife didn’t follow some crash diet. It just seems like she is willing to do whatever it takes to win.