I know how ya feel, man. If I ever got lost from my Glaceon, I would feel abosolutely devistated.
If I ever find Greatblue over Wi-Fi, I'll try my best to scam him into tradeing it to me, then Ill trade it to you for a random bidoof or something. Oh, and if I ever see Steven, my Glaceon will make short work of him.
1 more thing: I learned a moral from this story. I'M NEVER TRADING MY GLACEON. EVER.
Well, wish ya' luck finding Greatblue! =]