Ah yes the comment section is full of definitions of love! One can only hope this part of the manga is being played up for whatever effect(comedic? Horror?) and that the rest of their love isn't as twisted as this.
@SupremeDoc It's EITHER because it is Ishigami (defined as a creep) who said what he said OR because of the tone he used while saying what he said... OR newly-experiencing-love-life Kashiwagi is just naive...?