I met someone online, then we met in person. As things will sometimes go, I didn't really like this person IRL. Nevertheless, they liked me and now they keep pushing themselves into my life. They are very nice, nothing wrong with them, they are just not someone I want to be friends with. I don't want to go the avoidance route, as I know how hurtful that can be, but how do you tell someone you just don't want them in your life, especially when there is really nothing wrong with them?