I know this is probably going waaaay off target here but I always thought there might be some significance in the names themselves. Priscilla means "old ways" and Karen means "untouched" so I always interpreted it as the same woman speaking about herself in two forms somehow making a plea to fate or old habits to release the "Karen" part of herself from the "Priscilla" part. "She's not your queen anymore, queen of the highway", meaning that somehow she had found a reason to "want to start" and has to rebirth herself in a new form (from her "old ways" to a form that was "pure") to make that way happen and is arguing with herself about it.
I know this is probably going waaaay off target here but I always thought there might be some significance in the names themselves. Priscilla means "old ways" and Karen means "untouched" so I always interpreted it as the same woman speaking about herself in two forms somehow making a plea to fate or old habits to release the "Karen" part of herself from the "Priscilla" part. "She's not your queen anymore, queen of the highway", meaning that somehow she had found a reason to "want to start" and has to rebirth herself in a new form (from her "old ways" to a form that was "pure") to make that way happen and is arguing with herself about it.