I don't agree that this story portrays martyrdom. It portrays compromises that people make for the ones they love. People are free to determine what are acceptable compromises and what are deal breakers.
- A person likes living in a city near friends and family, but their partner gets a job in another city, so they move.
- Or, the partner passes on the job.
Or, they break up.
A person likes a certain sexual act, but their partner isn't into it, so they decide to go without.
Or, the other partner decides to indulge.
Or, they break up.
All of these are valid choices. Compromise may produce resentment, or it may not. In this story, maybe Iori will come to feel comfortable with intimate touch that stops short of sex, or maybe not (I think this page is a good indicator). In any case, these two communicate honestly with each other, so things will probably work out for them.
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OK, the instant forgiveness after forgetting the eggs is a bit martyrish. ;)