What does "like them" mean here? Could you explain why did he say it twice?
He repeats "like them" here because he is emphasizing this expression to understand if Rachel actually likes them. So '"like them" like them' is used here to mean she truly likes them, because he thinks she might only be saying she likes them just because they are expensive. You can use this way of repeating "like" to clarify whether someone truly likes something or they just saying they like it but don't actually mean it. Ex: Do you "like me" like me, or just like me as a friend?