Fear/reassurance/apology/rant cycle with friends

I’ve posted this under a comment before, but if anyone has the time to read it and maybe share their experience or tips with me, I would really appreciate it. This is just kind of the reason why Idk if I only have OCD or if I should get checked for BPD aswell as emotional dependency is (as far as I know) not a common symptom of OCD and neither are excessive changes in emotions/moods. I think the worst part my situation is that one of my biggest and most damaging if not destructive obsessions I developed earlier this year was this constant fear that my friend would lie to me about meeting up with a boy she liked (we are both girls and queer, she didn’t know that about me until recently, but I’ve known that she is and we both sort of crushed on each other). Not just lie, but do it behind my back, keep it a secret, and then maybe even end our friendship without saying anything. And the thing is... that basically happened. Two weeks ago she started acting strange one day out of nowhere, and then I found out (through another friend) that he was coming over to her place. We had already talked about this before, I had cried in front of her and confessed how much it hurt me. I know doing that probably wasn’t the healthiest thing, but my emotions completely overwhelmed me in that moment. And even though nothing physical happened between them, it still felt like a betrayal. I’m not saying it was cheating, obviously not, we’re not in a relationship and it is unfair of me to try and tell her who or not to date, but it still hurts. Especially as weeks ago, we already had a detailed conversation about this. She told me she didn’t actually like him that much, and that if they were going to meet again, she’d be honest with me about it. But instead of being honest that day, she said nothing. Worse, she suddenly stopped talking to me, which made me think I had done something wrong so I completely lost my mind. She knows I’m emotionally dependent on her to some extent, so when she goes cold or distant, I spiral. And that day, I saw them talking and going quiet as I walked by, and then she literally turned to walk into a different direction. I don’t know why but it just crushed me. I thought she was mad at me, and I just felt like I was being shut out and lied to. And as I’ve mentioned, later that day, after eight hours of crying, another friend told me what really happened. She even drove me to her place so we could talk. We did talk, but since then, we haven’t had any contact. And it’s driving me absolutely insane. She told me it would be “people-pleasing” if she didn’t try to date him. And I know she’s kind of right, but she still lied to me. She didn’t care if that meant that she would throw away our friendship, or at least she treated it like it was worth less than a potential (!) relationship with a guy who, as far as I know, didn’t even respond when she told him she had feelings for him. It’s honestly devastating. I feel betrayed, discarded, and totally lost and I know I can’t even logically be mad at her as the reason she didn’t tell me is obvious and as a good friend I should just be happy for her, but my emotional side is so much stronger than my logic.

My girlfriend, who’s become increasingly controlling, read my therapy notes while I was sleeping (the one thing I told her not to read). She found a note I wrote, forgiving myself about a past guilt that I hadn’t in detail told her about, and she accused me of exactly what I fear about myself. A week later, she left me. I am destroyed. I’ve spent the past week desperately trying to rekindle the relationship, and I had some level of peace. I got heavy reassurance from a friend, but I think this was a trigger. A day later, while still focused on the relationship, my brain shifted to the guilt itself, and it went deeper. I am now back to where I was 2 years ago torturing myself over my real event OCD, and thoughts that I’m afraid to mention. I am losing my mind and can’t talk to the person who always accepted me, who I feel almost cured my OCD for two years. Now, here I am back to this app, I really need help, I feel I’ve lost everything.

the past month ive been ruminating about a time last year where i hurt a friend by unintentionally bringing up a traumatic memory when i was really drunk, enough that i didnt remember it, so i went 6 months without apologizing until i was worried when they werent talking to me anymore. so they told me when i finally tried to talk to them. i apologized and they told me we were ok now, and still want me in their life, but now they stopped talking to me again and its been 3 weeks, and im terrified that i did something again, especially since they stopped talking to me when i made a mistake before, and wont tell me outright. the event triggered horrible horrible guilt over what i did, mostly guilt About the guilt i was feeling, because its not a normal amount of guilt for a regular person, and eventually my compulsions for confessing and ruminating reached a high point. and when they stopped talking to me again they got even worse . they are aware i suffer from ocd and anxiety to an extent (we've been friends since we were teenagers) so its hard for me to believe they wouldn't do this unless i did something wrong again, especially due to the events of my past mistake. lately ive been wondering, 'have they found out my abnormal reaction to what happened ?' 'did a friend who knows about it tell them?' ive been avoiding asking them if i did something wrong again, because i dont want to make it a habit since i can fall very deeply into that hole of asking for reassurance and i feel even regular reassurance, without the ocd, im the last person who deserves that right now. im scared they somehow found out about my compulsions (which isnt entirely irrational) and i feel the need to apologize to them again. ive been having panic attacks about this. i feel like no matter what i do i cant fix our friendship, and its going to end badly. i feel like a terrible friend, and im too mentally ill to have friendships. i don't know what to do.