His frustration (mass release event -ch3 )

Xylon's gaze bore into Eva, his frustration simmering beneath the surface. He couldn't understand why she seemed so hesitant, why she doubted her own abilities.

 It ignited a fiery rage within him, fueled by the belief that she should have more confidence in her powers.

Her inability to meet his eyes only intensified his anger. How could she cower before him, doubting herself in such a way? 

Akuna, witnessing the tension between Xylon and Eva, grew increasingly exasperated by his silence.

 The anger within her welled up until she could no longer contain it. In a defiant tone, she confronted him, her words laced with a mixture of frustration and a hint of menace.

"I would kill you if I stayed any longer," Akuna spat, her eyes burning with intensity. 

The statement hung heavily in the air, a challenge to Xylon's behavior and a reflection of her own growing impatience.