My guy friend is being emotionally vulnerable; Does that mean he considers me a close friend?

He has been sharing his problems and worries with me. He has shared with me one of his most embarrassing moments that his friends still make fun of him for, and he is comfortable with me asking him deep personal questions about his feelings. We also joke around with each other and talk about less serious topics.

Is this a good sign that he actually sees me as a close friend and possibly an important person in his life?

My guy friend is being emotionally vulnerable; Does that mean he considers me a close friend?
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