[abbasmehdi]

Every story has 2 sides.

The code still belongs to you, so you can keep on working whatever inspired you. He didn't take anything from you, he just left. You should carry on. The vision inspired you, so maybe after your product hits big this $5k will seem small, half of which you were willing to pay anyway.

Your only loss to me here is $2,5k over 3 mths, and that is not even a loss, because you got work done the way you wanted for it, it;s just that you didn't expect to pay twice as much. On the other hand all the profits from future sales will be yours.

Note: The sky is never falling.