Well, Cassie's got... fuck... five dead siblings, so she definitely understands there.

Percy just... figured out a way to abandon her without going anywhere this last time. Didn't even seem to care when she went missing for almost three days and then returned without any memories of what happened. (Also known as I had to figure out how to keep Cassie IC when the person playing her brother in-game didn't do ANYTHING with him for over two months before the game closed.)