So i understand you may feel a certain way about the name, but do you not think its a little unreasonable for the creator to change an established character just because one person doesn't like the name?
You do have a option to not like the character. I hope you can eventually move on from what ever happened with this person you hate so much, but its better in the long term to forget about the bad people whom came into your life and use it as a learning experience rather then carry that hate around with you. As a matter of fact this game has a big focus on moving on and not holding on to hate or seeking revenge.