that's kind of rude. would you like her calling you fat, just cuz you're waste isn't as small? everybody has a different body type, and just because she has a naturally thin waste, doesn't mean she's not at a healthy weight. she probably has at least 12% body fat, which is pretty much ideal for women.
i'm not saying every woman can, or should, look like that, but she's healthy, not anorexic. just like you look healthy as you are. different genes make different people, there is no universal perfect body.
sorry, i don't want to seem rude, but putting someone down because they don't look like you expect them too is just uncalled for. you don't know if she's gonna see that comment, or how it will make her feel. think of that next time please.
yes, she is very skinny. must have just been a poor choice of words due to the fact the english isn't your native language. anorexia is a disorder, a deadly one, and it's a word too often thrown around at women who are thinner than average. i wouldn't suggest using it to describe someone who is thin and healthy, because it can be very insulting.
healthy body fat percentage for a woman is between 10-31%, preferably under 25%, as above that is considered overweight. she prolly has about 15% body fat, so she is perfectly healthy.
notice that the margin of body fat percentage is pretty wide, so while some women may not be as thin as this, they are also healthy, and i judge superficial beauty based on face first, then whether they're healthy.
some people, like this woman are genetically predisposed to being exceptionally thin. some are disposed the opposite, but as long as they're healthy it doesn't really matter.
we get anorexics because of the media, i agree, and because there is a lack of knowledge of what a person's body should look like, and how to get it there.
clearly, you need to do a bit more research on health and fitness. and rather than throwing insults around about someone's appearance based on your conceptions of health, rather than what healthy really is, you might try being more supported of the vast diversity of beautiful forms, from thin to thick.
and on a personal note, while you may not be that thin, as very few from england are, due to genetics, i'm sure you're quite lovely.