^^^^^^^ that's the gold! right there. I'll play, too!
So...
1. Do YOU want to be spied on for her sister? 2. Do YOU benefit in any way by hearing someone agree that ow and Clark are inappropriate? (Cuz I'm guessing you already know, and so does everyone else) 3. Does it need to involve YOU at all, whatever she does and doesn't want to keep tabs on.... ?
No matter why....idk. I may be missing it. I don't see how this is adding to YOUR life.
Leave them to the wasted energy and drama?
You have someone much more important to focus on......ATS. (Arms out presenting you with spirit fingers).