If women only have sex to offer in a relationship then why do they get mad when you only want sex?

Logically speaking. I mean a lot of times even after they given you sex they still want to hang around and expect more out of you and will get mad when they didn't get whatever it was they was hoping for out of you
If women only have sex to offer in a relationship then why do they get mad when you only want sex?
If women only have sex to offer in a relationship then why do they get mad when you only want sex?
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