50/50 tbh because he says "it's why I named you after the best thing ever" which can be interpreted two ways. either he says he was the one who named her in the first place, or he's saying that he's given her a 'nickname' based on her real name, like how he calls his lieutenant Lute.

but if he named her in the first place it raises so many fucking questions about where Vaggie even came from because arent angels just people who died??? (im a casual viewer not into the deep lore so i was more confused than anything by this shitty reveal)