@Robert Gentel,
You cant read so I will repeat the obvious "You have an implied bias in the question"...did you have any trouble understanding that? Are you going to pretend you dont have the intelligence to understand you have loaded the question in your favour? I suppose I might have to believe that...in the mean time I choose to assume you have an average intelligence and know full well the question is loaded.
A marriage contract is an agreement on many things, all recognised under law, including that the couple will have sex together and hope to have children. Most of the law involved in divorce is about children, even to the extent that property settlement and trusts (trusts are almost above most laws) can be dispersed on the basis of child custody. By introducing rape into marriage, there is no longer any agreement to have sex.
Ever hear of sexual assault? In some laws it is the technical term for rape, as the word is not mentioned in statute. There are degrees of sexual assault. If I put my hand on a woman's arse and she didnt want it, that could be sexual assault. I was calming my angry wife down once, and I gave har a cuddle from behind and my arms touched her tits. Being angry, she struggled but with some added humour on my part she calmed down, smiled and kissed me. She could have charged me with rape. Would that be reasonable? Was I guilty?