3 mo

What does this response mean?

So after months I texted a guy who I was dating but we had a misunderstanding and stopped talking. We weren't on bad terms or anything. Anyway, I asked how he was doing, after three days (his usual response time even when we talked more frequently) he replied and told me a little about his work he's doing and school, mentioned he got busier, but then said "hope you're doing good" at the end of the text. Since its not a question, I assume he doesn't want me to say anything else? I don't know what to think, but don't want to be stupid and respond when I shouldn't. (p. s. I'm autistic. Social and text cues don't come easily to me, part of why I'm asking)

What does this response mean?
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