Re: The way we was
Yes, in correct grammar, it absolutely would be "The way we were." I'm sure there was something in the episode that made this deliberate manipulation of the grammar make sense.
Remember - don't use songs or tv/movie dialog as the standard for correct grammar. Your understanding of English is definitely good enough that you can tell when things are wrong!
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.