It makes two of us

It is common for women to unite like friendship-community under certain conditions. Those conditions are common interests, something that makes two of them. Common interests or common situation they underwent or undergo is a perfect reason for women to become friends. It is common for friends to have something they both are interested at or something they both like.
Say, there is some unpleasant situation common for both women, that situation may be a beginning of f-friendship. Say, there are two women who are divorce. They both were abandoned by their husbands. They have a pain in common and they have the same feelings and thoughts about men and such situation. The day when such women will meet each other will be a day when they become friends.
A great amount of time will be spent for talks about double-faced scoundrels who are not worthy for woman's nail and that bitch who took him away. No matter on the differences of the situations a lot in common will be found. Those commons will soon become a base for female friendship. At first there will be nothing except talks about cheaters and those who make them cheat.
With lapse of time their pain will reduce and they will forget about it but they will never manage to separate. Such female friendship is like army male friendship. These women underwent their sufferings together and so they recognize each other as the very best friend as someone who is just like her. It is possible for such friendship to last for years long.