Thank you all for your answers. I've made a decision that I can't justify marrying my fiancee(guess that would've been easier than "stbw") with such strong feelings for another girl. And the personality issues "may" have been something we could deal with...but settling for something that might work out just fine isn't smart when I think I can have much more. My fiancee has many many great personality traits as well, so that's what made the decision so very hard. She's a wonderful, kind, compassionate person with a natural tendency to attract extreme amounts of stress, pass them on to me, and she generally just doesn't know how to relax. Breaking up with someone you intended to marry is just about the hardest thing in the world to do. I have never experienced anything this stressful or painful. It's not going to end here...things will I'm sure be tough for a while. In any case, thank you again for your messages.