It could symbolize an extreme form of nurturing. Maybe in the story, the husband is in a very vulnerable state, like being sick or in a child - like state of mind, and the wife's action represents her going beyond the normal bounds of care.
In a story, it might represent a complete breakdown of social taboos and norms. It could be an exploration of the idea of unconditional love and care, where the wife is willing to do something that is considered highly inappropriate in normal society to show her devotion to her husband. It could also be a means for the writer to comment on the fluidity of relationships and the power dynamics within them. For instance, if the husband has been emasculated in some way in the story, the wife's breastfeeding could be a way to both infantilize him further and also show her dominance in the relationship. However, this is a very extreme and unusual concept that would likely be used in a very niche or avant - garde type of story.
One possible reason could be relationship issues. Maybe there are unresolved conflicts or a lack of emotional connection that is affecting their sexual relationship. Another reason might be related to the wife's own sexual needs not being met or understood, so she is unconsciously or consciously withholding sexual satisfaction from her husband. It could also be due to stress or health problems on her part that are reducing her libido or making her less interested in sexual activities that lead to orgasm for her husband.
Infidelity is also a significant factor. If one partner cheats on the other, it often breaks the trust that is crucial in a marriage. Additionally, a change in life goals can cause a rift. For example, if one wants to start a family and the other doesn't, it can create major conflicts.
Often, a wife's nightmare can be related to her family responsibilities. She might be worried about taking care of the kids, managing the household, and all the tasks she has. So in her nightmare, she could be in a situation where she's failing at these things, like the kids getting lost in her nightmare. And also, her own personal fears and anxieties, such as fear of the unknown or financial problems in the family, can show up in these nightmares.
One possible reason could be that the husband is stroking a pet and the wife is simply observing with amusement. Maybe they just got a new puppy and the husband is petting it gently, and the wife is enjoying the cute scene.
One possible motive could be a sense of inadequacy. The wife might feel that she can't fulfill some specific desires of her husband sexually, so she arranges for a hooker. Another could be a strange form of self - sacrifice, where she puts her husband's needs above her own feelings of jealousy or propriety.
One possible motive could be that she wants to end the relationship in a rather extreme way. By setting up such a situation, she might be hoping that her husband will leave her on his own due to this unexpected and perhaps unacceptable situation for him.
One reason could be that she is unhappy in the relationship herself and takes it out on him in a negative way. Maybe she expected something different from the marriage and is disappointed.
One possible aspect could be a desire for power reversal. In a relationship, it might be a way for the wife to experience a different power dynamic. It could also be related to exploring new forms of sexual pleasure that involve role - playing and breaking gender - based sexual norms.
She could tell him about her day at work. For example, if she had an interesting meeting, or faced a difficult task and how she overcame it. Maybe she'll share some office gossip too, like who got a promotion or who had a quarrel in the break room.
One possible reason could be a misunderstanding of certain religious or cultural beliefs, but even then, it's not acceptable. Another aspect could be that she has some personal insecurities related to her husband's sexuality and wrongly believes that castration will solve those issues. But in reality, it will only cause more problems. It's also possible that she is in a very unstable mental state and is making this extreme demand without fully realizing the consequences for her husband.