I'm in love with a guy who seems to hate me
What do you mean? What has he done to you?
He is just rude to me and does not give me any attention.
Relationships don't always work out and it is understandable that one person can care more than the other person. You can feel sad that it is not working out and decide if you want to continue or end the relationship.
This doesn't seem like great advice. I want to make things work with this person.
You don't need to freak out if you get rejected. You can find someone new to date who will like you for you. I am sorry it didn't work out for you.