(Other tag is due to Comet not yet having his own character tag.)
Comet doesn't regret the decision to leave his village and accompany his new friends back to Maretime Bay. But a part of him still misses his old home all the same.
Naturally, there's only one thing for Comet do in a situation like this: Talk to his friends. More specifically, his fellow unicorns Izzy and Misty, hoping that they might be able to help him.
Izzy and Misty, though not the most experienced at giving pep talks, are more than eager to share some of their life experiences with Comet. And together, they'll help him see that home is more than just where you come from.