Chara isn't really surprised Frisk doesn't like it.

Chara didn't, either. But Blade (....and Gasbag, they guess...) haven't exactly been ambiguous about it.

And it's... kind of liberating. To be able to cut loose. To not have to constantly check themself for the sake of everyone else. To act on their feelings... and not Frisk's.

Chara doesn't want to really hurt anyone. Not really.

But this isn't hurting anyone. Not anyone who matters.

And to Chara, that's all that really counts.