Maybe that was part of it. Marcie sneered at Melpomene, with an expression not terribly unlike one Ares'.
"Because he's not here anymore! He wouldn't have wanted to take up space. And there was only me. HE murdered his brothers. There was only me to mourn him!" She looked at Ares then, wondering if he cared at all what havoc he wrought with Tragos' family.
He sneered back at her. "They all had it coming." The youngest one most of all. This mortal girl wasn't going to start judging him and finding him wanting now.