She needs to live... But by killing the one that had her heart in his hand is worse than death. The toxic behaviors were there before you decided to enter into relationships with him. The signs were there. But you chose to ignore it even though you know you'll ended up hurting in the end.

She never expect herself to fell in love at first sight. She loves him... He consider her as a friend...

Witnessing the situation in front of her eyes cause her heart to tighten her eyes become sore as tears threaten to spill out in any moment biting her lower lip, she turn around and  never come back