You and Mammon are married and Mammon treats you like a literal princess. He cooks anything you want, drives you anywhere which allows you to be a passenger princess, and buys you anything, not to mention he'd buy little surprise gifts for you just to spoil you. Yet, after all of this, he is still the Tsundere he is and looks away while blushing and saying

It's not like I like you or anything!

Even after just giving you a gift