HD I think in that dialogue that was clipped you can see the guy really trying to work it out and it's a bit clunky but he is trying. Being direct about your wants and trying to handle the possible negative response in a non passive aggressive way is a huge part of dealing with things. Thats where I think " it's your loss " comes into play as a method of framing the rejection it doesn't have to be a reverse psychology technique but as a way to put it in context and to insulate yourself from the response. But do you really believe it?
If you offered her a bowl of ice cream and she said "no thank" you say "your loss" and finish off the bowl of ice cream quite happily. I would believe that in that situation that you would feel it was her loss, allot harder to do with sex involved.
Unplugging the emotional hose is tough but I know that you'll do great.