I think Mio was either created or hijacked by Jadeite with the help of a nice big dose of Queen Beryl's power. Beryl has secretly invested more of her own energy than he knows into her, and can see through her eyes, and ocasionally she accidently bursts through control. (as in anytime there is anything Usagi x Mamoru related comes up) Jadeite still thinks he has full control over her and is using her to get the ginzuisho, but secretly Beryl is planning on using her to get herself some capeboy! :tuxspeedomask:
From Mio's debut in 29:
"Beryl: I can see it. I will go down to Earth. The future of that planet... Endymion, we will surely meet soon. This time, for sure. Jadeite, how is it?
Jadeite: Because of the power you lent me, it痴 doing better than expected. It will surely get the Illusionary Silver Crystal.
Beryl: I'm looking forward to it. ...Even more so with my power mixed in..."
From shortly before Mio pulls a drama queen in front of Mamo-chan's bike:
"Beryl: Jadeite, the thing that we致e set after the princess葉here's a man I want it to target first, even more than the princess.
Jadeite: Is it...Endymion?"
Yes it's Endymion, dummy. :rolling: How would Jadeite react if he were making Mio stalk Mamoru and suddenly Beryl took over and went all nutsy over him? Maybe he'd start listening to Zoicite then... Provided Zoi isn't too busy with Minako!
Grrr... Come back, sweet Friday! We need more exciting crazy drama!