Why is it certain tyoes of people feel that they are judged are valuated on how many people they sleep with or how "hot" their partner or ex are/were?

I seem to find more often than not people competing about who partner is better looking or how hot their last conquest was. I understand attraction is what intrigues a relationship, but does what's inside not count at all? I have met super beautiful people but when they talk I'm like "wow!!!" Am I the only one that feels sadned about how superficial the world is?
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