Heaven was sleeping in Zamiel's arms after a long day of talk and cries. Despite being in pain, her grandmother had been happy to be surrounded by her family. She even managed to sit up for a while to talk and laugh with them. Heaven was glad that her grandmother was in a better place. At least she wasn't hurting emotionally together with the physical pain.
Her grandfather seemed to go through his own struggles. Before he left, his eyes had been blank. Like he was still in shock. Even though Heaven felt a little bad for him, she hoped this would make him realize how quickly and easily you could lose the people you loved. She hoped this would open his eyes, but she didn't hope too much.
Heaven was mostly grateful to the water demon for taking care of her grandmother. Her grandmother had told her about him and how they became good friends. Heaven would guess the demon saw her as more than a friend.