I'm a well read grad student who's bluntly honest about all things, although I try to be most honest about myself.
While figuring out Illa and Ego's issues, Lunella decides that it's best for her to leave Devil Dinosaur back on the moon: it's where he belongs, or so she decides. Except I think they belong together. A truly sad ending to this, and I hope Lunella figures out that she needs Devil soon.
I was afraid this meant the end of this series, but there's another one coming out next month so that makes me incredibly happy!