Why women get angry if you reject them over their body count?

I don't slut shame. I do believe in liberation , freedom of women. I don't hate them , every person can do whatever they want , can sleep with countless guys. Generally I don't care. But I don't want relationship with someone more than two past (As I am the same ) . However if you reject women over this , they always get angry. I don't say harsh words , they can freely continue their lifestyle.
Why women get angry if you reject them over their body count?
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