A very important life lesson that I've learned is to understand the nature of jealousy. There are TWO types of jealousy, positive jealousy and negative jealousy as I'd like to call them.
Positive jealousy is something we all feel and should feel. It drives us to succeed, it helps us visualize our goals and makes a positive impact for our lives. It allows us to admire another person's success and be inspired by it. People who are driven by positive jealous say "Wow, look what she has accomplished - I want to accomplish that too!!"
Negative jealousy is inevitable sometimes and can really cause a strain in our lives and relationships if we don't steer it in a positive direction. Negative jealousy causes us to shrink into ourselves, judge others and exude malice. It causes us to resent others. People who are driven by negative jealousy say "Wow, look what she has accomplished - I wish she would fail!!"
Your job is to decide for yourself, which type of jealousy is this friend exhibiting? Negative jealousy is ok for a bit, it's irrational and instinctive. But a true friend and a mature adult has the capacity to turn things around into positive jealousy. People who are consistantly negative are toxic and it's best to avoid them at all cost.
Originally Posted by lucky216
[I] Ever since I found out I hurt her feelings I have been extra conscious about what I am saying, and I try to tell her something positive about herself every day I see her.
Try not to tell her something positive, you're just patronizing her. You don't have to be apologetic about your weight loss. And if she ever implies again that you think you are superior to her simply reply "I'm not superior to anyone, I'm just a more successful version of who I always was."