I need a male perspective

I need a male perspective: does your wife or girlfriend who is answering texts or calls she has received from other men telling them to leave her alone and not talk to her, that she does not want to be in a relationship with them (since she is already in a relationship), does a woman who responds even in order to get rid of other men, is that still betrayal and cheating on her bf/husband? If the husband blames her for betraying him and saying that responding even by saying ”no” is an opening to say ”yes”. If you’re wondering why she just didn’t block these guys, it’s because they were referred by people close to this girl’s mom, who didn’t know she was already in a relationship with a man. And wanted to arrange a marriage. So she felt compelled to answer because of the culture of her people who would have misjudged if she had blocked straight. So she just wanted to conclude with the word of leaving her. Was the pressure she felt a good excuse? Or she has no excuse and she should never have answered and what she did is cheating?