I have female friends. Some of them are married. We occasionally meet up for lunch or for coffee. But I don’t spend time alone on a regular basis with any of them.
If a man and a woman, not related but heterosexual in orientation, spend time together alone on a regular basis, the odds are more than 90% in my view that one party wants something more.
According to David DeAngelo, When a woman says to a guy, ‘I just want to be friends’, she usually doesn’t want to even be friends. A guy will get this response 99% of the time when he’s coming across too needy.