After Ruggie explains the efforts he would go to during Halloween in order to earn more candy for the children in his neighborhood Jade says, “I realize now that you are quite a bit more kindhearted than you appear, Ruggie. I had assumed you were the sort to only put in effort if it somehow benefited you in the end.”
Ruggie responds, “I’m just gonna pretend I didn’t hear that.”
When Jade expresses interest in Ruggie’s grandmother’s recipe for pumpkin pie, Ruggie says Jade will have to pay him for it.
In Kalim’s lab wear vignette Ruggie has Kalim purchase one of the three greatest delicacies that exist: an icicle mushroom. This is possibly the same mushroom that Jade raised himself in the botanical gardens and traded to Sam for a weapon during Beanfest.
Ruggie seems repeatedly suspicious of Jade’s sincerity during Spectral Soiree (Ruggie: “…are you REALLY concerned?” – Jade: “The idea of this being incredibly amusing never even crossed my mind.”)
Jade is Ruggie’s interview for his second birthday vignette, gifting him with expensive laundry detergent. After asking what dorm Ruggie would transfer to Jade says “I’m sure you’d secure a plum position at the Mostro Lounge in no time,” but Ruggie responds, “And let you and Azul run me ragged? Yeah, no thanks.”
Twisted Wonderland Reference Note 