Nandor has always been a jealous person on What We Do in the Shadows. He has competed with Laszlo on multiple occasions and used a Genie to ensure everything about himself was the best. So it comes as no surprise that when he thinks Laszlo is trying to steal Guillermo's affection away that he becomes jealous and competitive. This jealous streak actually leads Nandor to do something that no vampire has done before. He flies to space.
Source：https://www.cbr.com/what-we-do-in-the-shadows-breaks-a-vampire-record/
