Guys, I need thought on this situation?

Three friends from my previous job reached out and wanted to meet up, so I decided to join them. It was great, and then a few other friends stopped by to greet us and sat down nearby. Suddenly, I noticed one of my friends getting into a heated argument with a stranger. I informed my former colleagues that this was my friend and that I needed to step in to help resolve the situation. Once the issue was settled, I took some time to talk to my friend and understand what had caused the clash. When I went back to my former coworkers, I realized they had left without saying anything.

What do you think happened? Did I make the wrong choice by leaving to support my friend?
Guys, I need thought on this situation?
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