Regardless of your personality, there will always be someone that you just can't stand. Maybe even hate. In some cases, you might even be friends with this person that you kinda hate. I'm not talking about a secret hatred or jealousy, but just a plain dislike.
This is a person I'd categorize as a frenemy. Frenemy is a combination of the words friend and enemy. A frenemy is someone who you would help in their time of need. Someone you actually see as a friend. But at the same time it's a completely different kind of friendship.
An example of a frenemy would be a rival. Someone who you've acknowledged as a worthy opponent who you can compete with. But a rival is just a mere subcategory of frenemy.
This is a mutual kind of thing. It's much more than just hating a friend and it's a kind of experience that is really hard to understand unless you have personally experienced it before.