Should my old best friend get invited to the wedding even though we currently aren't speaking?
The backstory:
My best friend from high school - we'll call her Marie - and I always had a very... tumultuous relationship. I went away for college and she did not, and remained friends and would hang out when I would come home, but we grew apart. In the last few years, she has made some disappointing life choices and we've grown further apart, although I've tried to remain in touch. We've seen each other just a few times a year - birthdays, Christmas, etc.
When I got engaged in January, it had been several months since I had heard from her last and I tried to get in touch to let her know. Turns out she had changed her number and not told me (got rid of her personal phone and just used a work phone). Reason could be chalked up to aforementioned poor life choices. I got her new number from her sister and texted her to tell her and I got a "Congratulations!" via text but not much else. A few months later I found out that she unfriended me on Facebook because I invited 2 friends over and didn't invite her (her and these other friends have a longstanding beef).
After this, it was clear to me that I could not ask her to be a bridesmaid, but because of our decade-long friendship I decided to ask her to be a reader at the wedding. When she received my nice card asking her, she contacted me on Facebook and admitted to unfriending me and apologized for being a bad friend due to personal issues, depression, etc (for which I do sympathize). She did not give me an answer to my "reader" request at that time. A few weeks later, my parents hosted an engagement party to which we only invited family and the wedding party and, upon realizing she wasn't invited, Marie once again unfriended me on Facebook and sent me a message saying that she could not "be a part" of my wedding.
I ran into her at a mutual friend's wedding in June and told her that I would be disappointed if she wasn't part of my wedding, to which she, totally baked (see *life choices*) asked me "why?" I tried to explain that even though we're no longer "BFFs" her friendship is still important to me. We hugged and parted our ways that night and she made no further moves to try to be friends.
TLDR: Old best friend has distanced herself from me and declined to be a reader at my wedding.
I'm getting ready to send my Save the Dates. Does she get one? Should I just give up?