ANSWER:
He is sinful for hurting your feelings like this and he is an ignorant imbecile.
Abusive people want to depress you or at least to make you say a negative remark or response to what they had said. When you ignore them, not defend yourself and not argue with them, this kills them and makes them feel silly for failing to provoke you. They will stop after sometime if you succeed in ignoring them as if they don’t exist.