Has he lost interest or am I paranoid?

I’ve been dating someone for a few weeks now, and I like him, but we are taking things slow. Last time we hung out was a week ago. I reached out today to see if he’d want to hang out this week and he said he has a busy work week, but will try. No actual plans have been made. Am I overthinking or did he loose interest in me?
Has he lost interest or am I paranoid?
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