Is he interested?

I have gone out on three dates with a guy. They all three went really great. It was initially suppose to last longer but when we got to his house he said to have a good night. He hugged me for a really long time. Looked in my eyes and said I appreciate you have a good night. Guys do you think this is odd behavior? We didn't set anything else up and we didn't kiss? Do you think by what he said meant he's not interested? It just caught me off guard because he seemed tired or sad. The way he spoke was like he wasn't having a good time anymore.
Is he interested?
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