Probably read this around 2014-2017, was a weird one, but interesting, so it was set in futuristic/scifi, and there were two species, humans and this other alien one, they had this weird thing where the humans thought they ate eyeballs, but they ate candy eyeballs?, and In the beginning the MC, a boy, was with his mother, but somehow gets on one of the alien ships, has like these star powers, and the more he uses them, the closer he gets to dying? Also the aliens communicate with certain star and stuff, like each alien has a personal friend, and I think in the end he became a star, and the alien girl on the crew, who was supposed to be able to do it and never did, could do it because he was her star?

Looking for a book I read years ago, probably around 2014-2017.

It was a futuristic/sci-fi setting, and there were two species; humans and this other alien one. They had this weird thing where the humans thought they ate eyeballs, but they ate candy eyeballs? 

In the beginning, the main character, a boy, was with his mother, but somehow gets on one of the alien ships. He has like these star powers, and the more he uses them, the closer he gets to dying? Also the aliens communicate with certain stars and stuff, like each alien has a personal friend.

I think, in the end, he became a star, and the alien girl on the crew, who was supposed to be able to do it and never did, could do it because he was her star?