Told to take as she is now something foreign to them, they can't comprehend her anymore so they going to find so way to put her in their box of understanding.
Tell her she couldn't live her in fear of what other people think because they will happy focus on your "problem " whatever it is, instead of their own.
Then she ask her if she would fatten up for you. It is a lot more fun when she is into it.
Well, I would recommend you be honest with so she doesn't feel betrayed later. Encourage her to eat more fatten foods.
Relationship here tend to be one person moving to any part of the country to move in with some one. It is all about sacrifice. And not a lot of people are willing to do that.