Yeah, I agree with Kim. I've heard a lot of people say that they tend to drive their family nuts with all the nutrition talk. Fortunately, I live alone, so I just tell it to my cat
But I definitely am conscious of how much I talk about calories and whatnot to other people, unless I'm sure they are an interested party. That's part of the reason why I love the FitDay forums - plenty of interested parties! Also, it is very difficult to see someone you care about make a goal but fail to reach it. Maybe she's just trying to keep both you and her from being disappointed again, not realizing that she's kind of undermining you while doing it.
Best of luck to you.