Inés began to dream about the CP timeline because before she fell asleep, she began to question if all the rumors she believed about Cárcel were false. She began to think of Cárcel in the CP timeline, viewing him in her memory at various times mostly from afar. Then she remembers his love confession and breaks down crying. Cárcel finds her crying and immediately melts and goes into overprotective husband mode. All of this was cut by the manhwa storyteller.
Inés then develops a fever and falls asleep. Since she was thinking of the CP timeline, she begins to dream of it. She recalls the hell she was living in and the day her brother discovered the truth. The brother and Ines’s conversation was being monitored by the CP guards who were standing outside the room. The purpose of this dream is to reveal to Inés things she missed out on during the CP timeline. Like the way she finally noticed the “hatred” in her brother’s eyes that was aimed at her abusive husband. Then, of course, to discover something new that she didn’t realize before about Cárcel.
Inés’s brother will give her a bullet at some point later and tell her that they can’t live in a world with Oscar. Either she kill him or he’ll kill him. Inés eventually killed herself and her brother kidnapped the deposed Oscar and tortured him on a daily basis by cutting off a limb per day. He cut off his right foot, left foot, left wrist, etc.