What's it mean if a guy friend is very protective of you?

Like he tells you to watch what you say and do on the internet because of all the creeps out there, or he won't tell you how to do something that could get you in trouble and just stuff like that(I can't think of any more specifically right now). Like he just acts like he cares a lot about your well being and safety and stuff.
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+1 y
btw this is a good/close guy friend.
What's it mean if a guy friend is very protective of you?
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