Boyfriend demands girlfriend change her cat, Luna's, name because his sister is also named Luna, girlfriend refuses and sister gets involved: 'It's disrespectful to keep the name'

Author image for Briana Viser
Briana Viser • Writer and Editor
Sep 30, 2025 2:00 PM EDT

Names may seem a petulant or replaceable part of our lives, but the nomenclature really does matter. There's a verbal flow, an association, and our identity is encompassed with our name whether we like it or not. The same goes for animals. When an animal becomes a pet and is bestowed a name, they respond to it just the same. When I first got my cat, my roommates and I did try to change his name, but eventually nothing else made sense besides the name he came with. Whether you like it or not, the name an animal has must stick, unless you want to replace the pet entirely. 

The story here centers around the potential name change for a cat, and a potential breakup. The narrator has a cat, Luna. She starts seeing a guy, and finds out his sister is also named Luna. What are the chances? I guess not high, but sort of dramatic to demand a name change. 

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  • 01

    AITA for Refusing To Change My Cat’s Name?

    Grey cat
    via Mahmoud Yahyaoui from Pexels / Canva

    Image is representative only and does not depict the actual subjects of the story.

  • 02
    I (27F) adopted a cat two years ago and named her Luna. She's a sweet, gray tabby with the most adorable green eyes, and I
    via u/Alarming_Accountant9
  • 03
    absolutely adore her. Luna has become an essential part of my life and even helped me through a tough breakup last year.
    via u/Alarming_Accountant9
  • 04
    Fast forward to now, I've started dating someone new, Tom (29M), and things have been going really well. Recently, we decided to
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  • 05
    Cat smirking
    via Mahmoud Yahyaoui from Pexels / Canva

    Image is representative only and does not depict the actual subjects of the story.

  • 06
    move in together, which I was very excited about. Tom loves Luna, and Luna seems to like him
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  • 07
    Luna, and Luna seems to like him too. Everything seemed perfect until Tom dropped a bombshell.
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  • 08
    Tom has a sister named Luna (24F). He mentioned that it's weird for him to call my cat the same name as his sister and
    via u/Alarming_Accountant9
  • 09
    asked if I would consider changing her name to avoid confusion. I laughed at first, thinking he was joking, but he
    via u/Alarming_Accountant9
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    was serious. He suggested names like Shadow or Misty, but I can't imagine calling her anything other than Luna.
    via u/Alarming_Accountant9
  • 11
    I explained to Tom that Luna has had this name for two years and responds to it. It's part of her identity now, and changing it
    via u/Alarming_Accountant9
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    would be confusing for her. He argued that it's just a name and she would adapt, but I stood my ground. I even suggested using
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    nicknames or calling her "Lulu" as a compromise, but he insists that it's still too similar and uncomfortable for him.
    via u/Alarming_Accountant9
  • 14
    Couple having a disagreement
    via Comstock Images from Photo Images / Canva

    Image is representative only and does not depict the actual subjects of the story.

  • 15
    Things escalated when Tom's sister found out and sided with him, saying it's disrespectful to keep the name. She even accused
    via u/Alarming_Accountant9
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    me of being insensitive to their feelings. Now, Tom is upset, and it's causing tension between us. Some friends think I should just
    via u/Alarming_Accountant9
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    change the name to keep the peace, while others agree that it's unreasonable to expect me to change my cat's name.
    via u/Alarming_Accountant9
  • 18
    I'm at a loss here. Am I the a hole for refusing to change my cat's name?
    via u/Alarming_Accountant9
  • 19
    Dragonfly-Zai NTA Seriously? Your boyfriend's sister is getting offended over a cat sharing the same name as her?...
    via u/Dragonfly-Zai

  • I would definitely dump this guy if he demanded I change my cat's name. To avoid confusion? I think contextually it should be absolutely obvious when he's talking about his sister or when he's talking about the cat. Unless of course he's petting his sister…

  • 20
    sigh she needs to get a reality check... Doesn't she know how many cats are named Luna? I would feel
    via u/Dragonfly-Zai
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    awkward also if a cat had my name. But I would probably just ask the owner if they have a nickname. Not just
    via u/Dragonfly-Zai
  • 22
    ask to COMPLETELY change the fur baby's name. You are definitely not the a hole and your cat sounds like a absolute angel
    via u/Dragonfly-Zai
  • 23
    Witty-Profile1773 NTA: Dump the boyfriend, keep the cat name. Pro tip, maybe his sister can change her name since it's just a name.
    via u/Witty-Profile1773

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