Should I leave her alone?

I had this friend. She and I had been friends since 4th grade. We grew up together. She moved away and we kept in touch a bit on Facebook.

Then she found out I'm a Witch. She's a Christian and freaked out. We talked for hours and I tried my best to explain to her that I'm not evil, I don't eat babies, and that I'm still the same person I always have been. She wouldn't hear any of it. She completely broke ties with me. It was heartbreaking.

This was a couple years ago. I still don't understand how someone who I grew up with, someone who I considered one of my best friends, could just toss me aside like I'm worthless - all because of my religion.

I asked one of our other friends (someone I've been friends with since 3rd grade and also grew up with) to talk to her. But nothing came of it. The two of them still talk on rare occasions, but our one friend refuses to even acknowledge my existence.

I miss having her in my life. At this rate, I feel like if I don't do anything then she'll never come around. She didn't even come to our other best friends wedding because -I- was there.

Since it's been a few years, should I try and reach out to her? If you were a Christian and you were best friends with someone for 16 years, would you toss them aside for their change in beliefs? I just can't imagine that this is a level headed reaction.