Well, there are not very many options here. Perhaps there will be a scene where Asuna and Kirito reminisce, love breaks out between them again, they have sex on this bed to bring back the days of Aincrad, but Asuna realizes that there is not the same delight and desire that there was between Kirito and Asuna during the time of Aincrad.
And then Kirito leaves, for some reason (the detective called him or just left the game.), Inoda comes and fucks her, brings her to orgasm and then, perhaps, there will be a scene where the image of Inoda is superimposed on Kirito's image and this will make a huge crack in how Asuna perceives Kirito.
That is, Asuna's mind will break and Inoda's relationship will exceed level 500.