Amelia Garcia admitted that she indeed harbored ulterior motives for not wanting either of her sons to acknowledge their ancestors and return to their clan.
First, she didn't want any entanglement with the Hart Family.
Second, she didn't want to hurt her innocent daughter because of this.
Third, she did feel a bit vengeful.
Why should she be defamed as a murderer back then, and now that the truth had come out, they still refused to apologize?
One lives for dignity.
She couldn't swallow her pride, and she wanted the Harts to give her an explanation.
If they still didn't feel they were in the wrong, then it only meant that there was something fundamentally wrong with their moral character.
Such people were not fit to be the grandparents of her sons.
She was also worried that, once her sons recognized them, they might be led astray by bad influences.
Therefore, it was best to keep a distance, forever if necessary.