Naw. He did this in the last 40k rp too. Except last time he was gone for over a month before he logged back in. He still cares. He could be having the writers block or whatever you want to call it. We D&Der's call it DMitus. When a DM is doing too much DMing and not enough playing. Could just want a break. All we can do is keep staying active in the OOC and hope he comes back soon.