Pure love is unattainable.
In Lit Crit, arguing absolutes is not generally good form, let alone an attainable feat. I think that you certainly could write a paper using love in MD as a topic, but you'll want to have a much more focused thesis. Clarissa also has a love for the party and thus the group of invitees as a whole. Expand to a love for society, perhaps, with which she has been disappointed. My apologies for the possible botching of the character names.