I'm recently divorced man. We terminated the marriage and cancelled our legal duties. I feel so free now!. 
Sorry to hear that, but glad you're feeling good about it.
Yeah, for sure. Divorce laws are different all over the world, but where I am we needed to go to court and through the legal process. But it was totally worth it. 
Was it very costly?
Well yeah, a bit. The lawyer was a lot also. An annulment would probably have been much easier, just declaring our marriage null and void.