Zulius obviously spends a lot of time with Vergil! I expect they have plenty of date nights- though Zul is aware how Not Social Vergil is, so he usually opts for quieter things so his boyfriend doesn't have a whole-ass stress breakdown about it. He probably drops into the Auguries for lunch too! Also Cyngus, seen as he's the patron there. Does he make jokes about the teacher seducing the wealthy patron? You better believe he does! He'd take Vergil on dates to museums, too. He loves one (1) tallass nerd.