Hello, sorry for the essay, it's a bit complicated.
This friend was my best friend in high school ages 11-16, we did everything together and were really close. We started to drift a part a bit when we moved to a different school and made new friends but were still good friends until age of 18.
Then college/university happened, she moved and started a really hectic degree. I would try and reconnect with her in all the summers and vacation periods, but she often wouldn't reply or cancel last minute. I found this hard, because I missed her and felt like our friendship was fading, but understood and decided to keep on making the effort even though she didn't really reciprocate. One day I tried to get in touch with her on Facebook, and couldn't because she had deleted me as a friend. I tried to find out why and was blown off by a very weird excuse, and it closed off my only avenue of communication with her so effectively felt like she didn't want to stay in touch anymore. I was extremely hurt and upset and took me a long time to get over it. She's since explained her reasons for doing this recently, which was unrelated to anything I did or said but more her own issues, but practically it really damaged our friendship because we didn't really talk except at mutual events for 2 years properly.
We decided to reconnect on Facebook again after 2 years,
I would still see her at group events during the holidays, and things would be really nice and friendly, we get on very well and I didn't really bring it up, but I did feel like our friendship had changed and that I had emotionally distanced myself from her. We didn't talk much over the next 2 years, just a short message every 6 months or so and maybe once or twice one to one after a year of not seeing eachother.
I recently got engaged, she was very excited and we chatted general wedding stuff at a group event. She reached out again last autumn, and said that she was making an effort to be around more and wanted to be in my life more. I explained to her that I felt our friendship had changed a bit and that it would take time to be that close again, but I was excited to give it a try again. She agreed, and said she was really sorry for how things had gone and that because of that she realised that she probably wouldn't be one of my bridesmaids, but she was turning over a new leaf.
I said I was sorry, it was true, I was choosing my 3 closest friends as bridesmaids (two who go back to age 7, one secondary school friend, they both have been there for me 100% through it all). But I said i'd love her to be at the wedding (including breakfast with only close family and friends) and do a reading in the ceremony so she could be a part of it. She seemed happy.
Since then she cancelled on me three times to meet up, each time with a valid excuse but it stung none-the-less and didn't give me much confidence that things had changed, but I saw her again one to one when eventually she could make it work and once at a group event and things were good.
She then called me out of the blue and asked to chat last night. She said she just couldn't get over not being asked to be a bridesmaid despite us being so close and going through so much together in school, that she was extremely hurt, felt downgraded as a friend and that i was doing it out of spite because of her having a busy life and not being there for me. That I was sabotaging our friendship, that this was an opportunity for us to be close again. That I was a terrible friend for not inviting me to my 21st and my wedding was another thing she was excluding me from (I don't know where this came from, she'd cut off contact 6 months previous to that). That it would be so easy for me just to add her as a bridesmaid. She said that she had always imagined us being bridesmaids at eachothers weddings, and that it would hurt too much to see me up there without her.
And because of that she doesn't feel like she can come to the wedding.
The whole time she was crying. It was really bad. I tried to explain that I was just having my 3 closest closest friends who have been there for me consistently, and that I had also wanted to ask other friends who I was now very close to but didn't, even my future sister in law who I live with.
I didn't say that it won't be easy just to add her as an extra bridesmaid, one of the other bridesmaids dislikes her due to lots of complications in our friendship group and breakups etc. She ofcourse would never make it an issue but it would be akward none the less. I also feel that those three would feel abit weird about me suddenly announcing having X as a bridesmaid when they have been there for me consistently when X has hopped in and out at her whim and they've had to deal with my emotional fallout from it.
I explained that I did value her as a friend and do want to be closer, and the times we had together do matter to me, and that's exactly why I want her to come to the wedding (I have a large family so cannot invite all my friends I ever had).
She said again that she didn't think she could come to the wedding because I hadn't asked her to be a bridesmaid. I said that that was her choice, I would leave it up to her.
I feel like i'm being emotionally manipulated, there was so much guilt and blame in that conversation. It's massively stressing me out when I have wedding planning, finals and lots of other responsibilities to work out.
Should I reach out to her and let her know that I still want her to be involved in the hope that we can resolve things and be close in the future, or even say for her to think about it and she should still come? Or should I let this friendship go?
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UPDATE: Just an add on to this, thank you SO MUCH for all of your responses and input. It's really helped me through this more than you know. The whole thing really threw me into a tailspin and I realised that she'd really managed to get into my head and it was a really unhealthy relationship for me.
Anyone whose experienced the same thing I recommend reading the Mayo link below, it helps to give a name sometimes to very weird and hurtful behaviour, not to excuse it, but to understand what's happening and recognise the signs and get help and support yourself if it seems to be a damaging and repeating pattern of behaviour.
http://www.mayoclinic.org/diseases-conditions/narcissistic-personality-disorder/basics/symptoms/con-20025568