The Chinese room argument is about understanding, not emotions. There is a large body of literature on the use and evolutionary benefit of emotion. While you can make an analogy to see if a system can have emotions the link between understanding is not trivial. For example, animals show emotion but don’t have the same understanding that a human may have. I don’t think you need to have understanding to have emotions. So the Chinese room argument is shoe horned in without making it clear what your argument is.