Started dating a girl, we were together for almost 2 months

A week and a half ago she broke up with me, I was about to break up with her but she got to it first

On the phone call she said “I want to break up” and I replied “I want to break up too” then we went our separate ways

This Tuesday I posted a photo of myself where I look regular, content, even confident

She sends me a text saying “hey how are you doing?”

I don’t reply and she calls me.

On the phone call she’s pretty awkward, I’m very vague and short with her when she asks me about a personal situation

She asks me if I’m at work, I reply yes

Then she says “I’m going to let you go”

I reply “okay I’m going to let you go”

And she says “yeahhh yeaaah”

And I hang up the phone call.

I go no contact until Friday. This is where I really think I messed up. Last night, I called her.

I said hello, and she said “why are you calling” and I said “why? I can’t call you”

She said “I don’t know is it an emergency”

And then she said “I’m out right now I can’t talk”

“Bye” and I hung up .

I look at her story and straight after the phone call she posts a photo of her and her best friend which I assume was taken earlier in the day. So I’m almost certain that’s who she’s with

Then I notice she deletes a comment she had on one of my photos and even unlikes it.

Then she posts another story which I refuse to look at. She barely ever puts up posts on her story.

Did I really f*ck up? What should I do?

Let me know if any part is confusing and you want it cleared up.