Dinners and late-night fancy things were the sorts of stuff that Julian was supposed to take care of. He enjoyed sucking up that kind of lifestyle far more than Zane.
One of the many reasons that could be pointed that he took more after his father than his older sibling did. Maybe even to the point that made him the better fit for taking over after Bernard passed or stepped down than Zane.
Except that Julian didn't care for such things. This meant that Zane was stuck between two worlds. One he embraced wholly and the other an annoying part that he just needed to suck up and put with because one came with the other.
The young mafioso decided that night though that he wouldn't be having to deal with it alone. Much to the chagrin of the person, he decided to bring along with him. They could deal with suffering though after everything Zane had been doing for them.