Broke up with STR of 6 months, about 4 weeks ago after she lied and went no contact.

There was a St. Pattys day event, which I expected her to be there, but my friends and I go to this one spot upstairs at this bar, always.

I had about 30+ friends there in this little upstairs bar section. When I got there after saying whats up to a shit load of people I saw her with my old college friends at the bar.

They saw me and got up to say hi, I noticed in my peripherals that she turned around saw me and left.

I just continued socializing. She ended up coming back with some other friends and with some guy to buy her a drink.

Eventually, she walked right infront of me with her back turned but I didn't say anything. She was about 5 feet from me for a good 30min with her friends. Her best friend saw me and asked me "where's X?", I said "idk". (like why are you asking me we broke up?)

I was talking to some girls then went back with my boys. I turned to the doorway and she was looking at me already and we made eye contact but I didn't acknowledge her.

I acted indifferent and did my own thing.

One of our mutual college friends told me how she heard we broke up (She just told her) and how she was upset about it and how she felt there really wasn't "closure" lol. I asked her what she told her about why we broke up to see if AWALT making her seem like the victim. She told her how I initiated the break up and didn't want to be with her anymore (of course not the fact that she went out to get a drink with a dude clearly trying to fuck her then lie about him being gay, in which I broke up with her right after, being the clear reason.)

Did I hold frame here? Anything I could have done different? I was thinking about saying a quick "hi" to show I don't really care but also didn't want to be the one to "break" contact.