LOL you do look like miley cyrus.. I feel sorry for you
All I can try to say is as you lose weight you should lose weight around your face/cheeks etc and you won't have that "chubby cheek" look anymore that alot of us has. Too bad for miley cyrus she's thin and still has it lol.
Your going to make a very beautiful bride
And stuff your in-laws. Pretend for a few days that you like their comments/actions etc and they'll get bored of it because they don't get the reaction like they used to.
How old are they? Are do they have sagging skin yet or wrinkles etc? Next time one of them say something about your weight say to them "I may be big but losing weight is alot easier than a face lift.." or something that might get to them and see how they like it