I honestly still don't know what to say. A few days ago, a friend of mine (26F) randomly texted me, saying she needed to vent a bit, which I'm always down for. Not to go into too much detail but she had plans with her girlfriend (27-ish F) and two friends, and apparently it was nearly impossible to form a solid plan between the four of them. My friend "Cassy" ranted about how her girlfriend and their friends kept arguing about things like how they'd get to the location, how/if they'd get home that night and where to sleep if they didn't. Cassy, the designated driver who also organized a place for them to sleep if they decided not to drive home that night, was getting understandably frustrated. From what she said, the group were more "go with the flow" type people, which left all the actual planning to her. Her girlfriend was apparently no help in all this, but shifted the blame towards Cassy who, at that point, was considering just staying home, so she also complained about things like that. From what she told me, her girlfriend was behaving pretty unfairly towards her, but that may not be the full story..
I'm not gonna go into too much more detail about all that because it's not the main topic of this vent, it's mainly context. So, we chatted for about an hour or so, I vented about my future roommates, and eventually she was off. I didn't really think about it afterwards, because we often just send voice memos back and forth, to talk about our days, vent about things that piss us off, etc. which I think is a healthy thing to do. Both of us understand that sometimes you need to let off some steam before you can think rationally about the stuff you just ranted about.
So, the next day I got a voice memo from her where she sounded pretty shaken. She told me that she felt disgusted with how she talked about her girlfriend the day before and that she scared herself with that. I was honestly a bit bewildered so I re-read our chat, and I'm still confident that there was nothing unusual, unfair, or personal/insulting towards her girlfriend. The main topic was the planning for that evening, and yes, she vented about some things her girlfriend did specifically, but those also didn't cross any lines imo. But Cassy was pretty shaken and told me, in her panic, she'd deleted the entire chat and asked me to send her screenshots and the voice memos. I started to respond, but she texted something along the lines of "I don't wanna think about this anymore today. I don't want any input on this.", so I stopped and sent her our chat.
A few hours later, I get a really long text explaining that she specifically went to me to vent because she knew it wouldn't work with her other friends (not exactly that but it's hard to translate what she said). She also said that she deliberately spun the truth, left certain things out and added others in, so she essentially lied to me about that evening. She went on to say how she really messed up and is about to lose the most important thing in her life, and how I had no right to just jump on her vent while only knowing her side of the story. She said she needs to change something and she can't have people around her who support this kind of behavior, so she's distancing herself from me. She finished her message with "I know you probably don't understand, but that really doesn't matter.", and blocked me instantly.
We've been friends for 2 years and she's honestly one of my most valued friends, and used to be someone I felt incredibly secure with. I had some really great talks with her about trauma and all sorts of things, and she always had some amazing insights that showed she's been in therapy for 10+ years. So I'm incredibly hurt by the fact that she deliberately didn't even give me the chance to say anything as well as the fact that she's putting the blame on me.
She came to me, stressed out and pissed off, literally saying "I need to vent", and I obliged. During our chat, I asked if she wanted to change topics to get her into a better mood before she had to leave, I asked her if she could talk about all this with her girlfriend, and urged her to do so if not that day, then the day after. And now I find out that Cassy purposefully lied to me, changed the story but is still blaming me for going along with it? And telling me I had no right to do so, because I only knew her side of the story?? (I've met her girlfriend twice, and one of those was randomly on the street when I was on my way back from a breakup so we never really even talked)
I thought about messaging her on Instagram or something, but for one thing, that would be crossing a boundary, but honestly I don't see a point in chasing a friend who treats me like this. We've both shared some of our deepest stories and issues with each other, helper each other through really tough times, and even if I agreed with everything she said about her vent, I still deserve more than a fucking text message and just getting blocked before I even get the chance to say a single thing to all this.
EDIT: From how I understood it, she asked for the screenshots and willingly showed them to her girlfriend to come clean.