FF-betrayal

This is the most common and popular reason for female friendship to come to its end. Women are able to forgive their friends being stupid, they can forgive their friends being a person of no taste, they are able to forgive them mismatch of foundations but they will never forgive them their betrayal. Though, every second f-friend is able to betray her friend.
For some reasons the feeling appropriate to male brotherhood feeling is not a feeling of women. They have their own foundations but those foundations rare deal with betrayal. In case if woman wants something, she is able to do a lot of things in order to get that thing. And she will never even stop because of prospect of betraying her f-friend.
She will manage to find a number of justifications for her did and will calm her self down with that justification. That is why it is common for woman to sleep with husbands of their friends. And it is also common for husbands to sleep with friends of their wives. But, there is no way for a man to sleep with wife of his friend. They will never betray each other.
So, women are friends and one of them sleeps with the husband of another. Such situation may be temporary but it may also be permanent. Women are able to be friends even in case if one betrays another. Sure, only under conditions if another knows nothing about her friend's and husband's cheatings. This situation may end with friendship or marriage over.