Your comment made me think of how some mean people abandon their unwanted pets by driving far away and leaving them to fend for themselves as they drive off. Listen, she is your wife and not an unwanted animal. You should be honest with her. If you do no longer want to be with her then say so and ask for a divorce rather than tricking her into going to Belize with you and leave her there.
As far as removing the conditions of her permanent residence, she might still be able to remove the conditions on her own if she can prove that the marriage was entered in good faith and things just did not work out. You cannot just ship her back to her country now that you have realized she is "very ignorant and stubborn," according to you.
