But that could be a great set-up for some real psychologocal drama regarding one's own perception of their sexuality.
If all you wrote is true, then it would be kind of interesting to see Jeremy "think" he is falling in love" with Ennis because of their shared similarities. The ensuing exploration of what sexuality means to Jeremy could be quite interesting.
Interestingly enough, Scott, this is to me a very realistic possibility. What is the line between a close friendship, with strong identification between the friends, and attraction? Sometimes this line is so subtle, it can't be perceived, even when it is crossed, until intimacy unexpectedly occurs. Isn't this what happened between Ennis and Jack? It still wouldn't mean Dupree is gay, and I for one - in even attempting this ridiculously complex plot - have to say that I don't think anything is cut and dried. People just don't neatly fall into piles of queer and straight, and if there is any lesson that comes of Dupree's dilemma - it is this little home truth, illustrated.