See, that's the thing that makes me roll my eyes, everyone sees "Reverse NTR" as just 'the guy getting all the girls', which is basically dumb, is like saying that males can't have feelings or feel terrible about shit like that, which is basically double standards, but also hammers hard that most people just have no idea about SAO's actual canon relationships or setting beyond the wrong 'harem' impressions or what the Haters say XP Canon-wise all of them pushed past their feelings for Kirito and actually are fine/happy about KiriSuna regardless of what they may feel, and are genuinely all friends with Asuna too (Is what makes Liz's portrayal in Fujino's games one of the greatest mischaracterizations hilariously, and why I don't feel bad at all for when she inevitably falls under Inoda's 'counter').
But all of them HAVE suffered to different degrees (Suguha the most blatant with Liz second) over that in the background, is just not a focus nor do they have dumb fights between each other or towards Kirito because despite what many say SAO is NOT a Harem series so they legit have a good and civil friendly relationship in their group, which is why I personally DO find the idea of them snapping and trying to get Kirito for themselves to be not only fun but honestly more interesting (And more believable than 99% of the NTR settings that disregard much more than just their attitudes anyway). Granted, it may be because I care more about the Hentai than the 'NTR' aspect, but from those 2 doujins I mentioned I found I liked it more because it was actually the GIRLS winning, rather than Kirito, or Random NTR Male/Ugly Bastard/Old Man #895 (Or some Canon character changed completely into a NTR god), which is what basically all SAO NTR content is about anyway, and given I DO like the girls as actual characters I just personally find it more appealing.
Plus it feels most SAO NTR nowadays is more focused on making Kirito suffer than in the actual 'NTR' aspect anyway, so if I have to see Kirito suffer despite liking his character to enjoy my Hentai I would prefer him seeing emotionally suffer from the cute/sexy girls around him going yandere on his ass, which he actually WOULD have reasons to not try and solve the issues for himself beyond suddenly becoming retarded or losing all the ways he realistically could solve 90% of the NTR settings if he was written canon-accurately XP