The “Friends Circle” refers to a group of men that a particular woman has little or no sexual interest in. Normally, the men placed in the “Friends Circle” have higher aspirations of relationships with the particular woman that has placed them in this cruel category.
This classification (or relationship status) is not to be confused with other groups that suggest friendship, i.e. "Fuck Buddies".
Things a woman may say that would indicate you're in her "Friends Circle":
"You're like a brother to me."
"I know I can always count on you to listen."
"Can we still be friends?"
"You're like the gay friend every girl wants"
"Let's get ice cream, watch Sex in the City, and do each other's hair."
"I have no sexual interest in you, what-so-ever."