You've always been body positive, and you probably still are
In her case it's compensatory, she has wanted to lose weight multiple times to become more powerful (using adderall and other things to make it easier), talking about how her family gains/loses weight quickly, and has a pretty messy history with it.
I am fine with being any weight as far as looks, but there are less health risks involved in being thin as long as it is not anorexic thin and you do not lose weight through doing super unhealthy stuff like purging or starving yourself
there is nothing compensatory about it, and I have never associated being thin with a sense of power as far as I can remember (if I did in the past idk but after having lost and gained weight back and forth so much I realized that it does not truly matter in that regard)