Does my girl want me to chase her or she is mad at me?

I m ashamed to even ask this on here but here it is.

My girl was mad at me for liking what I thought was just a random girl s picture on Instagram. She claims it s her ex best friend from 2 years ago.

My issue is personally I don t talk/dm anyone on it. I tend to like and share circulating pictures/videos.

When she got mad I told her I thought it was a ridiculous thing to be mad over especial when I don t specifically know which girl it is. I m pretty sure she likes guys pictures and I d be a hypocrite to be mad at her for that. We didn t speak until she texted the other day to apologise and we are cool (I guess). I m not mad at her, I just think it s silly to argue over a "like". I asked her to call me 2 nights ago and she did we spoke briefly and I had to leave for work. Since then she s not made contact nor did I.

I m thinking maybe does she want me to chase her disputes that she was in the wrong.

Is she mad at me for whatever reason?

What do you think the grown up approach would be?