Straight: Bob tries to initiate sex with his wife Alice, who, for whatever reason(s) is not in the mood. When she turns him down, he scowls, picks her up, throws her on the bed, rips her clothes off and has his way with her.
Bob rapes Alice to death.
Bob rapes Alice several times.
Every married man in the work does this.
Downplayed: Bob molests Alice.
This couple lives in No Woman's Land, where a woman has few or no rights, and is considered property rather than a person.
When Alice turns down Bob's sexual advances that night, Bob feels disappointed, but accepts it and just goes to bed, watches some TV, or has A Date with Rosie Palms instead; he doesn't rape Alice or coerce her into sex.
Bob doesn't make sexual advances towards Alice that night in the first place, either because he isn't in the mood, or can tell she isn't in the mood, or both.
Alice trains to become stronger than Bob, so there's no way in hell he could even try to rape her without getting a broken arm in the process.
Alice divorces Bob.
Discussed: "Is it considered rape if you're married?"
Conversed: "Why do men always get away with rape on this show? That would never happen in Real Life."
Reconstructed: Alice gets the help she needs, and files for divorce from Bob. (If she takes him to trial, in this case, he is found guilty of a crime and punished accordingly.) If she decides to pursue romance again, she makes sure that her new guy has nothing but the utmost respect for her and her wishes and treats her well.