Just read through your journal and bio - congratulations on the upcoming wedding! And congrats on such amazing progress in just a year!
I never believed that people could say the things they do about another person's weight until I experienced it myself. For me it wasn't jealousy, though - this person was truly concerned for my health, and was worried I might be trying to go "too low". I think it takes a while for people's mental picture of you to align with the current reality. The same is true for you - you aren't yet used to your new look. But give it some time - you'll eventually come to accept what you see in the mirror. You've got to trust that mirror! Don't give up.