The Catwoman can indeed use her own nen abilities to resurrect, but unfortunately, her nen ability called 'Black Dance Imagination' has a rather slow healing speed, even when she is fully concentrated.
Now, with her head severed and heart almost cut open, combined with the threat of Su Xiao, she simply cannot reattach her head and heart.
Catwoman released the head she was holding, and before it hit the ground, she charged at Su Xiao. After being beheaded, the sole remaining thought in her mind was to kill Su Xiao.
Losing her head not only means losing her vision or sensory abilities but also her ability to think and make judgments in combat.
Dealing with Catwoman in this state, Su Xiao doesn't plan to fight head-on. Now, she's just a puppet on strings, and no matter how strong her life force is, losing her head and heart means her bodily functions will rapidly decline.
