Bosom friend can be a general term, regardless of the same sex or the opposite sex. However, a woman's blue-faced confidant is ambiguous. It is said to be pure, but in fact it is definitely not so pure that there is no physical contact at all. It can be someone who hasn't had sex, but it definitely can't be someone who hasn't touched their fingers. Because of the initial physical contact, warm emotions will arise between two people. Even if they have never met, they must tell each other's stories heart-to-heart on the phone and computer. The meaning of confidant is to let the other party understand yourself thoroughly. Mind, even body.
