@Canonical-Moth-One of the hardest things people go through at a young age is rejection / someone not liking you back. When you want to be with someone, it stings when the feelings arent mutual (in this case, anymore). It might not be something you can just fix, but with time, it will work itself out. Sometimes people want things they can’t have and that’s what makes you want it more, yknow? It makes that thing kind of more valuable to you. I can’t guarantee it’ll all pass, but I hope you’ll be happy in the end whether they end up liking you again, or you find consolation without them.
