It's the same with any weight loss and even more so after pregnancy (you also have to reduce you increased blood levels and stuff as well).
It took 9months for your body to get where it is now, allow yourself just as long to change it back.
Not eating actually makes it worse because your body starts to retain fats and liquids in order to survive.
If you really want to take control be active and focus on eating healthy.
Maybe even do a detox diet if you aren't breast feeding.
But yeah by not eating your skin and the rest of your body lacks essential nutrients and therefore skin gets that sallow uncared for look - not eating won't make you attractive.
Eating healthy will.
And, who says jon doesn't fancy you any more?.
You need some "me time" time to have a long bubble bath, manicure and pedicure, to go with your gorgeous hair.