Your repetitive excuses on that gambling script lies are:

1. Maybe I got lucky
2. I never gamble my own money.
3. I'd never put big amounts on it (Yet you started asking for a 1.2 BTC minimum, which is like 10K USD, lot of money)

nullius was one of your most well known and well-respected customers. So he gets a 200% return. (Suspicious anyone?).
Its a classic bait before the scam. My guess is that you were waiting for one of the old fellas who would commit multiple BTC. One of those who haven't bought bitcoin but got them as early adopters.

Its hard to believe you after all the blunders and half-truths (Like "he must be some other Jack")
Its hard to believe after you are linked with a series of scams from your IP and linked users, all of which is being done supposedly by your 15 y.o. brother. Must be an evil genius this brother of yours.

Your offer for skype isn't working because nobody wants to be in a potentially illegal situation with you. Its nearly impossible for you to now get out of this. Better for you to stop this and put your energies elsewhere. Maybe try to be more truthful and sincere in your future exchanges. You may earn less but you'll earn much more respect.