Same-sex crush on a teacher!? WTF?

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I am an 18 year old girl in Community College. My English teacher really gets to me. I can't stop thinking about her, I'm always nervous to go to her class but at the same time I really want to. I didn't say a word to her out of the six weeks the class has been in session until last Thursday. (She wrote on my paper "see me after class".) It's hard for me to make eye contact. (With anyone). When I did make eye contact with her I got really nervous and looked down. She has hazel eyes just like me. But when I did talk to her I thought about how I said my words after talking to her and I think I sounded snobby when I was just nervous. I was trying to avoid talking to her. I like how she dresses, and how she carriers herself. She puts humor in here teaching. I found myself Google searching her. She told the class that she's 35 and engaged to a guy who teaches snowboarding, and she's going for her English master's degree. But I wanted to know more. Also I am a Christian and I know that being gay is wrong in that faith. I don't even want to be bisexual. But I'm just really lost right now. =( Is this admiration or a crush? Please help this s really bothering me! =/