"...he's way scarier than Mathian"
The simple yet confusing words make Dio stumbles back feeling the energy from his body leaving him, red-dyed blood is dripping down from the hole on his neck that got stabbed by a knife from the person that filled his mind since yesterday.
It's the person that makes his entire day gloomy thinking about the possibility of her death.
Despite being exhilarated from seeing the person that he thought was dead is alive, he soon got the shock of his life. Abby stabs him right on the neck without even hesitating, she looks unwilling but she did it anyway.
With the leak of his soul gushing out of the hole on his neck, Dio falls to the ground while still looking at Abby in disbelief. But his face soon started burning with anger, "Why, Abby...? Why?"
Abby can only look away not willing to answer, another voice then answers it for her.