Well when she said recently that she would have any friends that she pleased, perhaps that was mainly out of resentment for "being told what to do", not because she fully intends to continue to have close male friends.

Remember also she first said it would be "too confusing" for the kids if you stayed over. Then, later on, she allowed you to stay over. Perhaps her feelings have been gradually changing.

Were you able to have a discussion with her about this request? How did it go?