Hi, there's this girl I've been dating for quite a while now and I have never met anyone more amazing, I truly love her. Her stances on social issues and whatnot are quite based too so I see myself marrying and starting a family with her.

Today though she sent me this post: http://imgur.com/a/XhMEH0g

And then I found myself defending the word and trying to tell her not to buy into this dumb SJW shii. Long story short, we had a falling out and I need urgent help. She said even if both sides are okay with it, we should encourage the girl to stand up for herself and reclaim it...

How do I explain this to her? How do i explain the fact that it isn't a sexist slur? And why there's nothing wrong (if both parties dont mind)?