Am I a total bad person if I left my ex girlfriend for a girl that has bigger boobs?

Yes, I broke up with my girlfriend for a girl that has bigger boobs. I googled it and it said it was just nature of men to go for big boobs to nourish my offspring.
Am I a total bad person if I left my ex girlfriend for a girl that has bigger boobs?
Am I a total bad person if I left my ex girlfriend for a girl that has bigger boobs?
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