David, I also go to a very small and conservative school so I can feel what you're going through hon that is, in a certain way. I'm white, yet I remember first attending making friends with guys that happened to be black, and I was afraid that my parents would find out. I mean, I remember attending fraternity formals and my parents seeing pic's with me and guys that aren't quite the shade they are and trying to hide the pics once I got them! But, I eventually decided to just say f*ck it to my parents and now they're much more accepting

So hon, there's hope out there, just find girls are right for you.
ps: The letter issue came up with the guy's last-last pledge class. Once they got their 3 magical letters it seemed every girl on campus were dying to crawl in their bed, lol! Have fun with it! If they're just using you for your letters, use them for their....well...you know.