His training

Since Eva left Xylon behind her, he didn't follow her or search for her .

As the days turned into weeks, Xylon immersed himself deeper into his relentless pursuit of power within the abyss. 

Each waking moment was consumed by his insatiable desire to grow stronger, to harness the darkness that resided within him.

 He pushed himself beyond his limits, training tirelessly and delving into forbidden knowledge that promised untold power.

In his heart, the absence of Eva weighed heavily. He knew deep down that she hadn't truly turned her back on him, that her departure was a consequence of his own actions and emotional turmoil. 

But he couldn't bear to acknowledge it, to confront the pain that lurked beneath the surface.

 Instead, he chose to bury himself in his pursuit, using it as a shield against the vulnerability that threatened to consume him.

The abyss became both his sanctuary and his prison.