Anorexia is simply the wrong way to lose weight. Starving yourself puts your body under incredible stress, which causes your body to store fat to hold on to every Calorie that comes its way, as well as burning off muscle and bone (to reduce the amout of Calories required to keep you alive and functional).
At the same time, you have bodybuilders messing with their hormones (which is bad for all kinds of reasons), dehydrating themselves, and dropping their bodyfat down to dangerous levels. Also, moving all that muscle around can't be good for your heart, especially since these guys don't get much cardio benefit from weightlifting.
Neither is healthy and neither looks good.
No woman would be sexually attracted to skin and bones for obvious reasons ... as for the bodybuilder, believe it or not, I've heard that although women - especially older women - love muscle, they don't love that much of it; it's too weird for them.
That being said, it is possible to both look good and be healthy.
Play sports and/or lift weights
* Plenty of cardiovascular exercise
* Plenty of good food (amount appropriate for body mass and activity level, along with, but only if necessary, slight surplus for building muscle or slight deficit for losing fat)
Neither being healthy nor looking good should be so complicated and so demanding of your time, effort, and devotion that it becomes a chore and therefore ceases to be worth it to anyone who isn't obsessed.