Does it mean anything when a guy tries to be protective with you?

Long story short, in my martial arts class i was going to use a wired jump rope for some calf muscle exercise, and i heard him whispering to his brother about me possibly getting hurt by the jump rope. I looked back and he stared at me and told me that the jump rope would hurt me. I told him i knew already and thanked him for being concerned. It confused me because he is typically a shy guy, and there was a girl using the jump rope before me and he said nothing to her. I'm guessing because we are somewhat friends, he was just being polite. Any other thoughts?
Does it mean anything when a guy tries to be protective with you?
Post Opinion