Feelings I'm afraid have little to so with the legal realities at play here. He had choice to sign or not sign. He signed. While not same subject, there are equally intense feelings that arise in marital separation agreements especially when an ex moves out of state possibly taking kids, alimony due to ex if she/he purposely avoided work to get alimony and 81 other things. The courts are not really all that interested in those feelings of unfairness between exs here.