What does “Good talk” mean?

So this guy that is always flirting with me, was trying to talk and I had a bit of a headache so wasn’t reply completely. I mean I wasn’t ignoring him. But I wasn’t super responsive either. And I think he felt awkward because he said “Good talk” when it got quiet and then kinda just left the room. Thoughts? Opinions? I’ve never had someone say that and he’s a sarcastic asshole 70% of the time lol
What does “Good talk” mean?
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