I don't want this...

Hi, I'm have a problem with liking a guy who I don't want to like. We're not friends at all and we never have been for all the years we've gone to school together. I really don't know why I'm so infatuated with him, but he's just so nice compared to most of the guys who I am around. But at the same time, I know that he's not the kind of person I want anyway. He is NOT the same religion as me and my parents DO NOT want me to date right now. Its just kind of a crush. I get nervous around him...A LOT, and its just weird because it is so uncalled for and out-of-the-blue. I'm a really quiet, caring kind of person and I mostly like to study and to write, while he is the exact opposite, a highly social people-pleaser but sometimes a little spacey. HE'S SO NICE TO EVERYONE...And All the advice on getting rid of a crush has to do with keeping a distance and maybe talking it out, but I am so confused. For one thing, I never make eye contact with him unless I HAVE TO. And even then, I still get nervous. I am sure he has noticed that, but I try to be optimistic and say no one else can tell that I'm nervous. And I won't talk to him. Trust me, there is nothing to talk about. I feel like a really creepy, bad person for being like this, and I have been pretty set on being single and good for most of my high school career. I've never had a serious bf. Now, what I need is to figure out how to stop thinking so much about him, smother these feelings, and get on with my life. Any advice at all, even if you are unsure of how to answer, is greatly appreciated. Thank you!