Sorry to say that.. he married u for who you are and how you looked like isn't? Have a talk with him and see if he can offer some encouragements to you.
Remember something..Being big is not being inferior and loses out to the skinny n sexy!
If you have confidence, what ever you wear will be nice.. because confidence is a piece of clothe that fits everyone..the Fat, the thin, the pretty and the ugly!
I am also fat.. a size 20, used to think inferior, until I decided one day ... so what being fat! at least, it is "me".. there is no one else that looks like me! I am unique!
Don't try comparing with your SIL..you can never be satisfied comparing yourself with others..besides, there is no perfect person..
Next time, if you MIL comment on you again, just either tell her to stop comparing or just simple keep quiet and walk away..I think she shld get the hint.
Be happy ok....remember!! Being big is not being inferior!!
These days, many places sell plus size clothes.. just buy something nice for yourself and wear them happily..
BTW, Mira, how old are you? you seems tall @ 168cm..90Kg shld looked too big on you right?