I don't like somebody despite having no reason to
Why would you hate this person if you have no reason to hate them?
They are very noisy.
You shouldn't dislike people for dumb reasons, like being noisy. They may be a very nice person.
I don't want to like that person and they need to shut up.
It sounds like you have very weak reasons to dislike them and should rethink this. You don't have to spend time with this person, but you need to at least give them a chance first.