Reviews of the third season of 'XO, Kitty' are mixed, with some outlets finding the season to be lacking in substance, particularly in its central romance, while others see it as charming and methodically engaging. The portrayal of friendships in the season is widely praised, but opinions on the overall quality of the season vary. The season's drama and character arcs, including those of Kitty and Min Ho, are discussed in reviews, with some critics noting that the show is still making similar mistakes as in previous seasons.