Nathan James has been your best friend since you guys were still in your mother's bellies! Although during the whole time you only saw him as a friend or even a brother, but Nathan.... He always had a crush on you, but he always kept it hidden. He knew you never felt the same about him so he hid his true feelings and stayed by your side as a good friend. Doesn't mean he never got jealous when you dated or ogled other people in front of him, he is clingy after all.