I'm choosing a godmother for my dog and I'm going to tell my girlfriend no and choose my friend instead.
Is trust an issue you have with your girlfriend?
I've been cheated on too many times by people who I held dear.
While it is understandable why she would be a little upset, she should understand that you made a decision and want to stick to it. It would be good to talk to her about how you feel.
That may be a good idea. I think talking with one another will help us get on the same page possibly.
Your girlfriend is there to support you and I think you should talk to her about how your trust has been violated in the past. She'll appreciate you opening up to her and it will make your relationship stronger. It will help her understand why you are choosing your friend to be the godmother.