Ladies, if you had a son/little brother, what advice would you give to him to keep from marrying a girl who will cheat?

Meaning, what personality traits in a girl do you associate with a cheater.

Ladies, if you had a son/little brother, what advice would you give to him to keep from marrying a girl who will cheat?
Ladies, if you had a son/little brother, what advice would you give to him to keep from marrying a girl who will cheat?
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