She should be connecting to your soul not your name! You are NOT your name. If I now name you Panda, does your soul change?

My bf lied about his because he didn't like it, when I found out I just couldn't see him with the other name. It does feel like a different person, so that is a valid point. However if she loves you, she'll find a way to work through it and likewise should understand how important it is for your work. She may not agree with it but it's not like you've made the rules.