Board Thread:General Discussion/@comment-185.180.32.71-20200125155050/@comment-29759785-20200126073837

At most, they are close friends, with Argo seeing herself as na older sister to Kirito (she actually acts like that other characters, for example Asuna). As for romantic feelings, she does not have any of them towards Kirito; what is more, she is the very first in-universe KiriAsu supporter, from chronological point of view - as it is shown in the Progressive Light Novel series.