Some people in the movie did but not all. It happened enough that it wasn’t considered strange but the central focus wasn’t all of society going down hill because everyone was involved with an AI. If you recall, the human relationships that the characters who fell in love with AIs had were not very good situations. The main character’s arc started off at a low point and then improved while his romance with the AI developed, only reaching a lower point when he felt betrayed and when the AI left him but that might as well be any ordinary relationship. At the end he finds a kindred soul and it’s implied they have some kind of future together whether romantic or not.
