It might be due to her being on the spectrum and being a perfectionist but the sad fact is she's a very narcissistic and superficial person.
She's 25 and already had a nose job, botox, her teeth done multiple times, light therapy and now she's obsessed with going to the gym. She keeps showing off her arms like they're something special when in reality they look like anorexic twigs a gust of wind could snap in two.
It's not just her own looks she's superficial about. She's admitted many times she's only dated superficially good looking guys despite knowing they didn't have great personalities and then wonders why none of her relationships work out.
And now she's saying the type of men she's into are guys with giant muscles and a six pack, combine that with the many hints she likes big

that means less than 0.1% of the male population would be good enough for her.
She's also very judgemental of other people's looks making fun of bald people and she has a weird obsession saying anything less than perfectly straight, bright white teeth are ugly.
If she's posting filtered pictures of herself then she's contributing to the impossible beauty standards women impose upon themselves. I wouldn't feel too bad for her when she's part of the problem.