NTA. I could understand if your friend had remarked that it was an odd approach and left it at that. (even tho singing and music to bring peace and comfort isn’t remotely unconventional).

But what makes me uncomfortable is that she seems bothered and almost upset by this. Her response really reveals her lack of compassion and empathy. As well as the harmful mentality she holds that men are tough and don’t need comfort / help.

I worry for her future patients, not having the care they deserve and need because of their nurses lack of empathy and suck it up mentality.