Sharing Our Innermost Thoughts

So its a long story…on april 2022 i like this guy and my close friend also like him but i didnt know at the time so i made the first move (and my close friend, lets call her ira knows about this) even though we were already chatting at the time but just about school works. In the middle of the month,there was this event and i was taking pictures with the guy,giving cake to him in front of ira then we got super close,he flirted with me, i flirted with him i bought him gifts,i stayed up in the middle of the night bc he needed someone to talk to…i think ive done so many good things for him but on july 2022 we just disconnect…we didnt talk much and he doesnt seem interested…on his birthday,i found out Ira gave him a gift too and I thought it was super weird but didnt think much of it but a week later i found out they were talking (me and the guy already stopped talking). Maybe after two weeks of them talking,the guy came back to me saying he have a lot of things to say but didnt say anything at all. So i tried talking to ira,telling her about the guy texting me while also texting her(which she didnt tell me herself that she was talking to him) and she didnt say anything except silence and “idk what to say im too shocked”. On September 2022,ira told our mutual friend that it was my fault in april(on the day of the event) that she was super down.
I just dont get it how is it my fault? I did not know she likes him…i should be the one that’s angry because she knew that i liked him she knew i was talking to him yet she still texted him… Is it my really my fault?
And somewhere in September she told me she had already stopped talking to him but it was a lie of course, right now as i am writing this they are texting with each other.
So after all this long story lmao is it truly my fault?