There aren't, actually, like I said a lot of Asuna's characters are blatant retcons, but that's not so much her fault as it's how the original story was conceived, which is something most anime-only will never know and even LN-readers won't acknowledge because 90% of the SAO fans only care for Asuna and/or KiriSuna XP
See, originally, SAO was meant to be a self-concluding 'one-shot' story, what nowadays is "SAO Volume 1" was originally ALL SAO was. In anime terms, imagine if it was just Episode 1, then skipped immediately to Kirito with the rare cooking ingredient rabbit in Agil's episode, remove the Yui episodes of their honeymoon entirely and any reference to anything that happened in the season before that moment, and end with Kirito waking up in the hospital. That's it.
Most of Season 1 (Liz, Silica, Yui, even Sachi and the Black Cats) were only added as part of Volume 2, which was the author trying to flesh out the world of the 'finished' story, and then he decided to continue more with a new direction for the plot since 'SAO' itself was over. Asuna's character is so shifty because originally all there was to her character was that and it wasn't meant to have more, it was just a self-concluding semi-fantasy love story, hell, she didn't even "win" over the other girls for being "better" than them, she won by default because none of them even EXISTED in the author's head when he originally wrote SAO.
Asuna originally had never even interacted much Kirito outside some boss fights before the last days of Aincrad, which is how originally Fairy Dance, then Fatal Bullet, were written upon. Then that was retconned to they actually having interacted a few times when volume 8 added the sidestory of the 'murder mystery', which was also in S1 in the anime. And even after that it was retconned again as they actually having met at the beginning of SAO when the author was asked by the anime team to write them a script for the second episode, which he once again 'wrote too much about' and became what nowadays is known as SAO Progressive, a whole-ass spin-off that completely retconned the entirety of Kirito and Asuna's relationship to they having known each other and been partners since the beginning of SAO before something split them apart, NONE of which was originally part of the original story at all
Again, none of this is specifically Asuna's fault, is how the author decided to continue the story from a 'self-concluding' point and expand it in bits and pieces in every direction, both continuing the main story and also going back to add more and more stuff to the early days of Aincrad constantly, but it's directly what caused Asuna to be such an 'inconsistent' character, because she has gone through like 3 whole retcons just to make her 'fit better' as the main heroine.
For all people rage about Kirito, is ironically Asuna whose writing is much worse thanks to both the author's efforts to write her better constantly and the bits and pieces he never touches, like, this rich girl who didn't have any real honest friends before SAO and was constantly under a controlling mother, and never done a single sport in her life because it would have been 'unladylike', and never touched a videogame in her life, became a godly prodigy unrivaled by almost everyone else the moment she grabbed a rapier despite having 0 experience with it, and despite having never cooked in her life she was such a prodigy at cooking in the game that despite having absolutely anything to do with real life cooking she also was cooking with the same master-waifu-levels like a month after getting out of the hospital
