Is it rude I completely ignore my personal trainer when I see him in the gym?

It’s just I want to do my workout and I always have AirPods in so I didn’t even hear him when he said hi I seen him but I didn’t want to go over and say hi and disturb his conversation / training or become taken off track from my own training it wasn’t personal but part of me feels I should explain myself because he kept on looking over at me I think he thinks I just completely blanked him

Is it rude I completely ignore my personal trainer when I see him in the gym?
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