You thought it was fine to have a tiny crush on someone, so it became scary when the feeling got deeper. God, the feelings. Don’t they make your heart crumble and rise indecisively?
You are not ready for another heartbreak. You need to keep it whole. So it got scary when it told you that it longed for someone new. You got sad. Real sad.
You just don’t want to end up having your heart broken again, at least for now.