Oi, this guy. The skull, I mean, not Greg. Greg's a cool guy. He'll hide in the bushes and defend your house for you, though you really should just ask him in.
The anime being referenced is one of the many incarnations of Tenchi Muyo, an anime with a main character who has many suitors. Greg being Greg, he's probably dreaming about completely fulfilling that role, which basically means it's unlikely he was dreaming about actually being with any of them.
Commentary added October 31, 2014