Because he's not the brightest Meebo in the box when it comes to things like this and may or may not try to go off on his own, searching for his missing best friend.

[Sorey's missing, and she's definitely worried about that too, but nothing good really comes from panicking and flailing around like a headless chicken. She has to put together a solid plan first, be the pillar of support as the only one not sick as a dog, and then try to find Sorey, in her own way.]