Was I right to avoid bar that ex works at or should it not matter if I'm there

so I live in a small city you'd say , not a lot of night life options , this former girlfriend that I known for a few years works at this one bar / club that is here . I usually would go there on Saturdays but last couple weeks I've just avoided the place as I didn't want to see her and wanted to avoid the drama . but there isn't a lot of other options for bars just a pub and a couple sports bars so not much to do if I don't go to bar so I'll have to go back at some point . is it right to avoid place if I didn't want to see her or should it not matter if I'm there as long is I'm just being casual and not going out of my way to try and talk to her
Was I right to avoid bar that ex works at or should it not matter if I'm there
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