If seeing an ex brings up painful memories, is that a sign that you still have feelings or is it your brain protecting you from getting hurt again?

What do you think?
If seeing an ex brings up painful memories, is that a sign that you still have feelings or is it your brain protecting you from getting hurt again?
If seeing an ex brings up painful memories, is that a sign that you still have feelings or is it your brain protecting you from getting hurt again?
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