She fought for him, yes, but always to an extreme. The destruction of countries, then worlds. Entire civilizations were erased because she felt bored. And Gothiel was never allowed to die. She would not let him. No matter how many times he begged, no matter how many times he tried to kill himself, she dragged him back.
He hated it. He hated the suffocating feeling he felt staying by her side, And yet, he couldn't bring himself to truly hate her, he was her first and probably his only friend in their entire lifetime. And because sometimes she listened to him. Sometimes, in rare quiet moments, she would stop.
So when Iris appeared, Gothiel deliberately placed himself before her. He didn't hesitate one bit and made up his mind and as expected, he died.
Bomb, unable to accept it, extracted whatever fragments of his soul remained, and fled from their verse.
_____
