Meaning of this dream?

I had a strange dream about a guy who attended the he same college. He played football and we didn’t really interact until years later. We hooked up twice and I didn’t have feelings for him. He didn’t have feelings for me either or at least any that I’m aware of. I haven’t seen him in about 10 years. Last night, I had the most vivid dream about him. I don’t remember all of the details, but was talking to a mutual acquaintance about him playing football in college. I didn’t mention the hook up out of fear of being judged. I just use Tik Tok for social media and haven’t seen or thought about him in anyway. When I finally woke up, I asked myself why tf was I dreaming about him.

Meaning of this dream?
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