Greed was pissed. No, royally pissed. This whole thing with Zoe was getting him in a little too deep, and not just him, with Lust as well. He wanted to set Zoe in some kind of plastic bubble because he knew even before Lust's threat that it could and would end nasty. He wanted to keep his precious human to himself. He wanted something that he'd never had dammit. So he clung to it like fucking super glue. Zoe was cute, yes, but she offered things that he had never had. Friendship, companionship---Greed encompassed both good and bad things. Yes, he wanted wealth and material possessions, but greed in itself was also what one was willing to do to better themselves, to achieve goals, to have things. That included people, ideas, and any desire that one wished for.
He'd been holding back a lot from Lust here lately because that's what Greed did. He ran off to do his own thing, but that's when he got into the biggest of messes. This one was starting to spread so wide he didn't have a mop big enough to clean it up. Being chewed out by the rest of the hell spawn was not on his agenda for the night. On top of it, Lust had flat out rejected him. Well, that just didn't make him a happy boy at all. It set him into that little part of himself that made him a vindictive, selfish asshole like the rest of his family. It didn't even matter if he fucked anything right now, he was actually too pissed off to care.
Then he ran into the only person Lust would have his balls shredded for. Pride. Greed had made himself the bargaining chip between Lust and Pride and he hadn't even realized it. Pride could spit him out and around on his ass just for the pleasure of returning him to Lust as scratched merchandise. And Greed, well he just wanted to piss someone off. Right now he didn't care who. It was why he'd stayed away from Zoe tonight. He would have taken it all out on her.