Asian wife acccepts infidelity?

As usual a group of us were chit chatting. And this particular topic caught my interest. My friend told me that one of her office colleague discovered that her husband cheated on her when she went for a short trip. She did sensed something was not right when she came home. Her home was too clean which is unusual as she knows her husband is not a neat person. True enough 3 days later as she was finally into the final cleaning of the house, she found 2 ribbed condom packagings and 1 unused open condom. Her husband was careless and must have forgotten that he just threw it into an unused dustbin. She was devastated. Her husband was the most loving man and she thought they had a perfect relationship. Sex was good and they communicate well. She tried to find excuses that it's probably just sex. And like how a cat can't resist a fish, her husband is afterall like any other normal man.

She questioned herself, would it do any good if she was to question him? Was she going to leave him just because of this? But then if she kept quiet, would her husband continue with the relationship and it might just gets too deep? And as she start recounting the days since she's back, she realised that her husband had seen her lover again as there was an evening when he came home with his tie not probably tied which as she thought was unusual.

My friend told her that it could really be just a one off sex and confronting it would start the first distrust in their marriage. But ignoring it might just give her husband more freedom which might be too late if feelings are involved. So she told her to give herself a few days or weeks more, to observe her husband to see if there's anything unusual with his behaviour. And if she continues to have sleepless night, then she might as well face it and question him. So that she can have a normal life again, with or without him. Time always heals.

Personally I still can't accept the fact that men are accepted to just had sex as there's no feelings involved. All in the excuse that they can't control that moment of lust. If they love their partners, would they not think before they act. Would women be forgiven if women too can give in to lust?

And again, it's this Asian wife conditioning, that infidelity by husband is acceptable as long they bring home the dough! A Western wife would have raise hell already!