What I say may or may not help, but I wanted to weigh in with my thoughts.

Would there be a difference as to how she feels about you if the two of you were not cousins? Or would she still not feel as intensely in love with you as you do with her? I guess what I'm getting at is that it's not uncommon for one person to fall in love with another and not have the feelings be mutual. It hurts to be the one in love (or is it ABC News: The Science of Love
<A target="_blank" HREF=http://www.its.caltech.edu/~sciwrite/2000-01/maq.htm>Chemistry of Love</A> by Christophe Maquestiaux (Caltech)
from <A target="_blank" HREF=http://health.discovery.com>Discovery Health
<A target="_blank" HREF=http://www.agelesslifestyle.com/page.cfm/633>Infatuation vs. Love</A>

<A target="_blank" HREF=http://www.empirezine.com/spotlight/frankl/frankl1.htm>Viktor E. Frankl - Biography</A>