He was making an effort to be good. He flirted, yes, but he had yet to take anyone to his room. Whatever was going on between him and Nephthys, he wanted to make it last as long as it could. Plus he liked having a space for him and her. It was nice.
He didn't need to clean, a maid service was nice that way, but he'd made sure to order up ahead some food. He'd had some of his own, but then one of the animals had taken his steak. He'd left the door open for her, so it was the creature who bolted out first, taking up position behind Nephthys.
A moment later Set appeared and cursed at the animal, "no. No hiding behind her you mongrel. That was my food." It was his own fault really, he spoiled the beasts to pieces ever since he'd collected them from the Duat. And the animal was smart enough to seek out sanctuary behind the one being it knew Set didn't cross.