You should have never attempted to launch a site which has no source of bankrolling other than depending on some sort of angel investor who just promised you funds, but hasnt sent you anything. Remember you are dealing with the gamblers directly, if the investor does not pay winnings then you are screwed.
Also the fact that you only earn like $900-1000 whilst attempting to launch a new dice site is probably not a good idea from the beginning. I know that opening a dice site can seem to be a great idea, but its not going to work without proper marketing and investment of AT LEAST 10-20 BTC.
But yeah... IN the end you paid him back even when you got neg trust.
That is something that i have to applaud you for.