I agree that he deserves credit for building it into a real business, and he has been richly rewarded for that. However, everything - the company's name, its business model, and much of its intellectual property were my contributions. A large part of its success resulted from sales of products using my technology. The personal falling out was over a woman, and I did not leave voluntarily. This company was my brainchild and I would have continued working under the worst of circumstances if allowed.

Finally, I don't think that anything entitled them to attempt to extort me, or to use my intellectual property while in breach of contract.