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butの先から行きますね。
you would hardly feel →SV(助動詞と副詞はあるけど)
the same sort of resentment and moral indignation [that would seem warranted]
→ O + [関係詞節]
had your guest intentionally broken the vase in order to hurt you.
これはif節の省略です。
元の形は
if your guest had intentionally broken the vase in order to hurt you.
です。
ありがとうございます😭