The question is not your impact on her. That is immaterial in the run of things because you mean it to be permanent. The issue is the mutual circle of friends and acquaintances. Those who accept "her side" will have to be avoided as well.
I realize I am advising a woman on this issue, when I don't really understand women very well. I am suggesting what is logical to me in this situation. In high school, it was simple: invite the guy to a knuckle conference under the bleachers after school with a dozen guys to validate the reasons and the outcome. Even if a guy lost the debate, he won the conference because he confronted the other guy and did not back down.
This is about you, and not me (though I got to thinking), kiki, so I hope you find the right solution.
Great questions for the board. Thank you, and best fortune.