Why men wants trad wife for marriage but cheat on them or leave them for whores?

Since now I haven't dated anyone else. I had a chance a lot but I didn't want. But every guy I met told me I'm women of the culture and they would make me their wife if they had a chance. Every men told me I have amazing character. Why men always say this but in the end they end with another girls?
Why men wants trad wife for marriage but cheat on them or leave them for whores?
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