Ace didn't expect her to give this kind of answer because in face of temptation like 'power'. She didn't ask about how powerful she'll become or when she will get the Blood Rose and begun her evaluation, what she asked was if she'll be able to protect him after gaining this power.
Ace was looking straight into Eva's bewitching eyes, there was not a sliver of doubt, malice, scheme or lie in those deep starry sky-like eyes. They were as pure as the ocean and her words were coming straight from her heart.
Ace felt the final layer of barer between them melt away by her heartfelt words and couldn't help but felt a new kind of emotion for her. That was the same type of emotion that he felt for Aline 'love'.
He couldn't stop himself from loving this kind of girl no matter what, because he never meets someone so pure and direct before.
