
Charlie still cares about Cal, but Cal doesn't care to hear it. Cal was hesitant to ever get into a relationship, and sees the secret that Charlie was keeping as the ultimate betrayal of trust. She longs for freedom and sees Charlie as the second biggest obstacle in the way of it, right after her demon. Now, Calliope tries as hard as she can to carry out Charlie's orders in a way that will upset the mage.
Once close friends, Ren became terrified of Calliope when she and Charlie broke up. He prayed to Thaldra for guidance, and after years of silence finally received a grim message from what he believed was one of her messengers: Calliope is a knight of the evil war god, Gruumsh, and must be eliminated for Thaldra's plans on the continent to succeed. Ren hunted her down at the docks and saw an opening to take her out with only a single witness, and believing Xaveria to be working alongside her, had no qualms with disposing of her as well.
While Calliope claims to hate being bound with Azazel, she doesn't deny the benefits to it. The power Azazel grants has protected her and her allies many times over, and she secretly feels safe being bound to him. The only thing she truly wishes to change is to stop hurting people against her will.
In the events of the Severance side-campaign, Calliope and Xav worked together to cleanse their former home of darkness seeping through a portal opened to the Shadowfell and to destroy Therron Rithe's memories for good. After clear initial distrust due to a secret that Cal had been keeping, she worked to mend their relationship. It eventually led to the two of them starting a relationship, with Cal making it very clear that she doesn't expect anything from Xaveria in regards to her previous life- even if it did seem like they were very similar people.