That's a common trick to snap a domain. I was in the same position, but signaled that I would sell, if the price is right. In the end I got a decent price and w

That's a common trick to snap a domain. I was in the same position, but signaled that I would sell, if the price is right. In the end I got a decent price and we were both happy. You can also try to convince the new owner to have a link to your new domain for some time to help your users migrate. Everything is negotiable and I prefer that before going to court. On the other hand you have a good chance to keep that domain, because you already own it and its your name.