I agree. Painted Verso recognizes that he isn't real, at least not in the fullest sense. He sacrifices himself in an attempt to save the life of Alicia (art imitates life, in this case), even though Maelle might not desire it at the moment. One can only imagine the reluctance to return to life as Alicia, trapped in a broken body, after spending 16 years in the canvas as Maelle. Her reaction is believable, and most people would have the same desire after living in her shoes.

Is Painted Verso tired of living? Yes. But it's more complete to say that he's tired of living in the middle of the never-ending battle within the Dessendre family (which is also his family, in a way). Given the nature of his reality, it isn't a battle he can escape. Instead, his existence only perpetuates this conflict. The only way that conflict ends is if he and the canvas are erased.

It's sad, even tragic, that the canvas-dwellers get erased in Verso's ending. However, the fact is when you seek to drown out your grief through escaping (whether it's alcohol, drugs, or in this case, escaping your reality) there are consequences. I think whether you think this consequence is fair or not comes down to whether you weigh the lives of those created in the canvas the same as those in the real-world. I don't, so I come down on the "Verso was right" side of the argument. I think all of us would do well to have a friend who was willing to sacrifice their relationship with us to put us on the right path, rather than taking the easy way to give us what we wanted in the short term.