Cut Off by a Friend

I've never had much friends, and I still don't really. But recently i lost a friend due to the fact that she didn't feel appreciated, and she felt i was draining her, and other things that were her fault too. But it was mostly my fault. I feel so many different things, even though it's been over a month. I still replay the scene in my head when she ended our friendship, the things she said, the happy memories we shared. I'm happy to move forward, sad that she's gone, angry at her, relieved to be away from her, respectful of her, motivated to get better, devastated that it ended this way despite everything, accepting of the way things have to be, hurt because of the whole sequence of events, melancholic when things remind me of her, sorry for hurting her, worried about what her friends will think of me, and a lot of other emotions all jumbled together, both good and bad and in between. I'd just like some advice or something.. has anyone here lost a friend by them wanting to cut you out of their lives? I'm grateful that i somewhat got closure in my relationship with this 'ex-friend' , but I'd just like to hear some insight from another perspective. Some advice maybe or hearing your own similar experience maybe, Thank you for reading this, I guess it was also a little bit of a vent!