Putting It Off
There’s conflict avoidance, and then there’s actually running away from a breakup area, which is exactly what this guy did. That’s far outside the realm of normal. It’s not pleasant to be dumped, but it’s probably best to at least hear them out before walking away in a huff and never talking to them again.
At that point, he appears to have given up on himself. Perhaps he sensed it coming? Or perhaps he just really didn’t want to have the conversation. We’re left wondering whether or not he realized they’d broken up after that. Was it him who decided to break up with her — but then changed his mind?