AITA FOR MY GBFF TO BREAK UP WITH HER POSSESSIVE BF.??

Hello Charlotte a huge fan of yours...!!! So I'm writing this to know if I'm in the wrong for them breaking up.

I(19) my Gbff(18) have been super close since the day we meet it's been 2 years since we have been close we are basically siblings at this point.

(I'm bisexual but I'm mostly into guys, this will be important)

So this happened a weeks ago, I uploaded a video of me and frnd which was one of those IG ones where you add your photo and there are some text showing. It was on the music pitbull terrier and it was a funny one I didn't thought much about it and I uploaded it. My frnd also reposted it, it's when her current bf(now ex) texted me on IG I responded “Ohh Hii what happened.!?” he asked me if I was free to talk...... I said yes and he asked me for my number, I gave him my contact number then at that time my frnd texted me saying don't ans his call and block him.!? I didn't know what was happening so I asked her and she said she will tell me later and asked me to come play MLBB with her and I agreed. After 2 games I left because my phone got alot of texts so I went and checked there were alot of text and VM from him calling me names and using harsh words (most were about how my mom is a B-word) I asked him what happened and he said about the video I uploaded he told me to take it down( not in a polite way at that) he used such foul language that I also got mad and said “If you wanted me to take down the video you could have said nicely and I would have happily taken it down, but NOOOOO you had to cuss and me and my parents. And how dare you say something like that about people you don't know.?? I can see how your parents raised you.!”

After that I deleted the videos from my story and block him,my frnd then texted me saying “Wait lemme break up with this guy I have been putting up with his child like behaviour for a while.” I asked if she is sure about it and I told her I don't want to be the reason she breaks up with her BF she said it's fine and she was planning to break up anyways. She asked him for a break up( I don't know what they said but my frnd told me what happened briefly) he sent VM of him crying and then text of saying she is a B-word/GandenHoe and all that and also saying my frnd and me were sleeping together. I was so shocked that he thought like that.So yeah the relationship ended

And then last week she found a guy who is a green flag like doesn't mind her having a guy friend and he is also frndly to me. And then yesterday the ex sent a text to the new and said “You are dating a hand down women.” “I have already done the things with her”. Mind you they have never meet in person he is like 4 to 5 drive away and my friend doesn't like going out much. Then the new guy (Bless him) said “Well thank you for handing her over to me I'm really happy I found her and I'll cherish her the way you never did.” WALKING GREEN FLAG🛐. Then the ex started saying “Invite me to the wedding and yadayada” the green flag told my frnd What happened and she was real mad she unblock the ex and said “How dare you do say that to him( Green flag)” and told him about why she broke up with him and everything, she also told him “If I break up with you I can find other better men to date who won't be a manchild like you, but I can't lose him(me) he was there for me when I needed him the most he was there for me standing besides me when I had no one. Loosing him is like loosing my right hand.!" ( This made me real emotional ngl😭😭) So get the fhk out and loose my contact I don't have anything to do with you.

I don't think he will give up that easily but I hope it does, and if anything else happens I'll update it here.

I'm sorry if the story is a bit messy, this is my first time sharing a story on Reddit.

So AITA for my GBFF's break up.!?