Actually there is no distinction. Unfortunately you don't have any control over this. She has the right to see anyone she wants to and even though it's not cool, she can introduce your kids to the new people.
If you are that concerned, I would suggest the two of you go into C to discuss how to bring up the subject to your kids.
She's Chinese, so she'll probably be very stubborn about going. But hey you're not in China.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.
