What does it mean when a guy walks you to class everyday and gives you his hoodie when you get cold?

Desmarie
So there is this guy that I have liked for a while. Well we are close friends... though recently he has been very attentive. A mutual friend said that he knows how I feel, yet he hasn't said anything. What should I do? How should I act?
What does it mean when a guy walks you to class everyday and gives you his hoodie when you get cold?
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