Freya

Initially, Freya is very friendly, hospitable, and at times motherly towards Atreus, taking care of him when his illness had become worse and his father had set out to retrieve a cure. She was friendly towards Kratos, despite the latter's open distrust of virtually everyone and hatred for gods. It is implied that Freya sees herself in Kratos and that this is why she decided to help him, although she also teases "or maybe I just like you". It is unknown which of these answers is true, but she is shown to care for Atreus, both as a friend and as a mother-figure of sorts. She occasionally scolds Kratos for keeping his past a secret from Atreus, and for distrusting divine beings despite being one himself. However, she understands his distrust due to the past actions of divine beings like the Aesir. She possibly reminded Kratos of Athena, which was why he was reluctant to trust her at first and not open with her as well.

Freya agreed to marry Odin, her most hated enemy, in order to protect her people and end the war. However, the eventual pains that she would later face would yield negative results on her mentality. After the deaths of her many of her people, the disappearance of her brother, the loss of her Valkyries, and the resentment she received from her own people. As well as losing her combative powers and being banished to Midgard for the rest of her life, Freya did whatever she could to protect the only person she had left in her life, her son Baldur. Due to the trauma of her previous losses, Freya became extremely paranoid and overprotective of him. Prophecies foretelling her son's demise drove her to cast a spell on Baldur, rendering him invulnerable to everything except mistletoe (which breaks the spell), but also meant he could never physically feel anything for as long as the spell lasted. For this reason, Freya panicked when she saw Atreus carrying mistletoe arrows, immediately destroying them and angrily telling Atreus to never go near them again. Freya also secretly bewitched Mimir, who had previously discovered Baldur's weakness, from speaking of it and her connection to Baldur to Kratos and Atreus.

Although Freya hated herself for the pain her curse put on her son and acknowledged that she did it simply so to alleviate her own fear, the possibility of losing the only person she had left was too much for her to bear, and she still selfishly refused to lift the spell, even lying that the spell could not be broken by any means and earnestly tried to destroy all said means to break it. Freya was willing to do anything to protect her son, putting her life on the line to prevent Kratos from hurting him. After Baldur was freed from the curse, and told her that he would never forgive her, Freya offered to let her son kill her to make up for the pain she made him go through. She was perfectly willing to sacrifice herself if it meant Baldur would live, something that Kratos himself understood as a parent. However, despite understanding Freya's selfless action, Kratos couldn't stand by and let the cycle of Gods killing their parents and kin continue, and so is forced to kill Baldur to stop him from killing his mother, causing Freya to become distraught and earning her hatred despite knowing how shameless and murderous her son had become. Believing it was a simple cold-blooded execution, she swore vengeance against Kratos for killing Baldur, as despite the fact that she saved his son's life and was the reason they would be able to reach Jötunheim, he took away the only person she had left in her life.

At the start of God of War Ragnarök, Freya has become completely consumed with her quest for revenge against Kratos, ignoring his and Atreus' insistence that they mean her no harm, and relentlessly stalking them whenever they leave their protection stave. Her frustration is compounded by Kratos' choice to evade her rather than fight her directly. Her desire for revenge even led her to maliciously trick Raiders to go after Kratos with the lie that his demise will end Fimbulwinter. Even when offered the chance to stop Odin by Atreus, she refuses as it would mean forcing her to ally with Kratos. When Kratos and Atreus lose the protection stave, Freya goes so far as to wear her Valkyrie armor to hide her identity, goading the two into an actual battle until Kratos recognizes her sword, Thrungva.

However, despite how much she bitterly hated Kratos and raged over Baldur's death, Freya's heart is not entirely gone. When attacking Kratos and Atreus, Freya focuses almost all of her efforts on killing Kratos, only ever non-fatally pushing or knocking Atreus aside. Notably, when Atreus readies an arrow and threatens to shoot Freya, Freya looks at him and momentarily hesitates, leading to Kratos disarming and overpowering her, showing that she still cared for Atreus as she was unable to bring herself to fatally harm him. Even when she threatens Atreus with death and Kratos was not there, she ends up sparing him. Ultimately, when Kratos tries to calm Atreus down from mauling Freya in his bear form, Freya suddenly finds herself conflicted, reminded of her own behavior as a parent from watching how Kratos cares for his son, she slowly abandoned her vengeance against Kratos. After reluctantly allying with Kratos to find and remove Odin's binding spell over her, Freya loses much of her drive for revenge as she is reminded of Odin's treatment of her and her people, and learns of Kratos' own quest for vengeance. Eventually, after they defeat Níðhögg and free her from the binding magic, Kratos asks her what will happen next, taking out his axe in case of a battle, Freya admits that some part of her would be angry at Kratos, she accepts that even if she managed to kill him, it would be useless and that her hatred is reserved for Odin. By the end of Ragnarök, Freya ultimately accepts that vengeance truly would only leave one empty, refraining from killing Odin when Atreus has his soul inside an orb.

With that, Freya regains her friendly and hospitable attitude, although the death of Baldur and impending war with Asgard and Odin certainly hardened her, and she has gained a sarcastic sense of humour.