Though the final episode is a Bittersweet Ending, it's not without its Heartwarming moments; namely the part after the credits finish rolling, where Hitomi looks out onto the water and sees a vision of Van sitting on the rocks smiling back at her lovingly. It could be a sign that she possibly will return to Gaia one day. It also shows that they are still connected with each other through their minds.
Hitomi's talk with Prince Chid was full of the D'AWWWWWW.
Folken's spirit comforting Hitomi while giving her words of advice just before she confesses her love to Van.
Speaking of, in the last episode, when Van and Hitomi are hugging/saying their farewells, the camera fades in between shots of spirits watching from afar. The most heartwarming of those come from a smiling Balgus, and Folken holding a smiling Naria and Aria close to him.