Add to name that you partner likes the full version. As an example, if you loved Rose but your partner didn't, but they liked Rosalie and you didn't love it but like it ok it - would you consider choosing Rosalie just so you could use Rose as a nickname?
OR
You like a nickname but straight up DISLIKE the full versions of it - would you pick a full name anyway? And would it make a difference if your partner happened to like one of the fuller version