My situation is as followed : i am a 25 year old male and have BPD,so i run to the internet to try and be normal.
So i met this girl while playing a MMO game last december.
At first everything was alright , but a few months down the line i started to idealize her and confine in her with more personal things ( as she claimed i could always talk to her about anything ).
I started to idealize and trust her so much that in the end i just wanted to hold her when i was feeling sad, maybe even verge on the fine balance of falling in love ( though she has been in a 6 year long relationship and lives about 1300km south ), we shared stories about how bad real life is, also for her and i confined in her that i had BPD.
Now about 3 weeks ago she basically moved to a different group of people on the game we played ( for you familiar with the terms , she and her bf joined another guild and stopped the one we were in ) this was a massive trigger for me, as i relied on her for my social contact and to share my feelings, and also it came kinda out of the dark.
Now im devastated cause our contact sunk so shallow it's not much more then ''hi'' or ''cya later'', im mad at her cause she knew how i was/felt and she left me.
I hate her for what she did but i can't get it over my heart to delete all contact with her , i tried that once but after half a day i was getting severly anxious and hating myself for making that decision, i feared the abandonment so hard i crawled back to her with some cheesy excuse for deleting her.
So i added her back on my friendslist etc and sometimes she comes on the same voiceserver as me again and we play a different game for a few hours with a few people, i love to hear her again but at the same time it feels like a burning blade.
I don't know if i should tell her that in the end i might have had feelings for her, though i know if she takes it the wrong way then her reply could be devastating for me.
At the moment im constantly swinging between being ''ok'' and not triggered when she's not around, and happy / sad / mad / triggered when is is around, i want to tell her that she triggers me and how i felt about her in the end but i'm just terrified of her response.
i know it sounds like a stupid question but what should i do from here on end ? should i talk to her and admit what i felt for her or should i just try and get through this one the hard way by ignoring her and hoping that one i can forget her and her triggers on me?
At times she still sparks that Idealize moment , but then it shifts to devaluation again , and this goes on and on untill she finally goes offline for the night.
i love when she is online and talks to me , but i feel mad / sad / everything in between when she logs for the night and the situation keeps me up for another few hours at least.
Yet i cannot imagine never talking to her again even though she fuels some of my really bad trigger moments ( though im sure she is not aware i miss her being there for me so bad or that she triggers me)
Should i tell her how i felt in the end and what she did still triggers me ? or am i setting myself up for another massive blow if i do ?

Sorry for the long post , not used to reaching out on forums or how to formulate my words in that manner.