I think your daughter is clumsily trying to express a desire to feel understood and respected as an adult. “Isa” represents how she identifies herself now. Recognising this doesn’t mean rejecting the name you chose or the special meaning it holds for you—it’s about honouring who she is at this stage in her life.
You might say:
"I understand that you feel strongly about being called Isa. It’s important to me that you feel comfortable and respected, even if this is a big change for me."
It’s okay to share YOUR feelings, but frame it in a way that focuses on your love and attachment to the name you chose. Emphasise that your intention isn’t to hurt or dismiss HER wishes.
For example:
"When I chose your name, it felt perfect and special. I’ve always loved saying Isabella because it reminds me of how beautiful and unique you are. That’s why it’s hard for me to let go of saying it the way I always have.
Maybe suggest a compromise as this will show her you’re making an effort while also staying true to your feelings. For example:
Suggest calling her “Isa” in situations where she’s most sensitive about it (e.g., in public or with friends).
Keep using “Isabella” occasionally in more intimate, family moments, with her understanding that it comes from a place of love.
You might say:
"I want to honour your preference for Isa, but I hope you can understand that I sometimes want to use Isabella, especially when it’s just the two of us, because it means so much to me. Can we meet halfway?"
The big question for you, as her Mum is if holding onto “Isabella” is worth risking tension in your relationship. As much as names carry emotional weight, they are ultimately about communication and connection. Prioritising your daughter’s feelings in this matter could strengthen your bond in the long run.
If she still feels strongly that your English pronunciation of “Isabella” bothers her, consider practicing the European “ee-sa-bell-a.” It might feel awkward initially, but this compromise could ease the tension while allowing you to keep using the name you love.
While you’re not unreasonable to feel attached to the name and pronunciation, it’s also essential to recognise that your daughter has grown into her own person, with her own preferences. Adapting to this change—at least in part—could pave the way for a more harmonious relationship. In the end, showing flexibility and empathy might be more important than the name itself.