I need a rabbi's help-a liberal one?

I want to go to go to Israel in the summer, for birth right, but I cannot go alone. My health is too frail, mentally, and going alone, I would crack easily. I want to go with my fiance, but he is not Jewish. Is there a Rabbi out there, a kind one, who would go out on a limb for me with a three sentence letter stating that my lover is Jewish, or that his mother was. Something. Anything. What am I to do?