Why does carrie have to say anything to dante’s parents?

Heh? I mean, she did have the grand idea to poison him, which led to him being in that hospital room to begin with. 

Would you rather she just ditched and didn’t say anything? Dante was not a cool person and he used and manipulated Carrie but she clearly felt she had a duty to say something considering her role in his death. 

I’m legitimately confused at what you think she should have done.