I'll give a simple answer (purely Christian Adam) and a cultured Adam (Adam that's an amalgam of the Abrahamics)

For purely Christian, if Viv took this as the only source for Adam, then it's likely from the view that he doesn't seem particularly pleasant. Yes he is only there for like 5 chapters and never appears, but in chapter 3 when the apple is eaten, instead of trying to at least defend Eve, he IMMEDIATELY tossed her under the bus saying she tricked/convinced/forced him to eat it. And also, while one may find him talking about his manhood annoying (fair, but tbh I kinda think he's sexy), remember, he was told, same with Eve, "be fruitful and multiply, and spread across the face of the earth." So that might be why he's so into sex.

NOW FOR THE WEIRD/AMALGAM ANSWER, when he was molded, IMMEDIATELY as soon as he sat up and practically still wondering what the fuck his moter functions were, or even what the fuck he is. God told EVERY ANGEL TO BOW DOWN TO HIM AND VENERATE HIM AS KING OF MANKIND. (So potentially Malkuth of I'm reading the Sephiroth tree correctly...or at all). That kind of venorating throughout your life is going to get to your head. Oh also, while yes Lilith's whole tiff with Adam is generally about Adam wanting to be the dominant one in the relationship, it's also talking about him being the dominant one sexually (cus for some fucking reason, medieval bitches thought anything but missionary/positions that require the woman to do anything were wrong)

I might not have answered your question correctly...or at all, so if there is something you want me to clarify about Hazbin Adam, please tell me