After Episode 21A chocolate slab... because why?Because it's Valentines!Nice work!Oh, before I forget-What kind, you say...?This here is for you, young Kazama me lad.So, uh, what kind of chocolate are you giving to me?
Literally 'Which type'. In other words, whether it's out of obligation or because she actually has feelings for him. Look up Giri and Honmei if you're curious.