Does it drive you crazy if your ex-gf ignores you after a breakup?

All relationship advice sites say that when a girl appears to get over being dumped really easy and is enjoying life ...that the ex boyfriend will desire her again and be bothered that she can be happy without him.

Is this true?

Does it bother you if a girl seems completely unaffected by a breakup?
Does it drive you crazy if your ex-gf ignores you after a breakup?
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