Tell him that Dr. Tida (or Mr. Prosper o) wants to be with you SO much that he has agreed to pay the $10K for you. So you are going to Hawaii with him instead of Emmanuel.
Immediately after you e-mail him this, drop the final bomb that you knew about the scam all along.
How about that? Can't wait to read the final messages! You and Emmanuel could get jobs writing for a soap opera!