Am I bad for viewing my cousin as a enemy?

I was happy when my cousins husband divorced her because she did not invite me to the wedding and told our 20+ family members to lie to me and pretend there is no wedding and after her mom told her not to invite us, she asked us for a $600 wedding gift when she makes over 10 times more money than us. My other cousin copied her influence and also decided not to invite me to his wedding but his wedding was called off when his girlfriend shared a bad secret with him, we have no idea what it was, but the wedding was called off less than 3 days before it was supposed to happen.
Am I bad for viewing my cousin as a enemy?
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