Okay, so she didn't mention Cory Monteith (Finn) by name. But if Lea Michele (Rachel) thinks that people don't know she's been dating her Glee co-star for about a year now, then she definitely underestimates the extent of the world's interest in her life.
During her November 12 appearance on Tonight With Jay Leno, Lea told Jay about a time she recently tried cooking for her boyfriend — though she doesn't think he liked the results very much. (Note to self: Runny eggs = not tood. We'll try to remember that if we ever actually try to cook something fancy.)