Got hit with the “I’m not in the right mindset atm to continue the relationship” Is that always an excuse, or I should believe his words?

We met on a dating app. He seemed pretty serious about me at first, came to visit me twice within 2 months, asked me to be his girlfriend. A little bit before the last visit I could sense he had less time for me due to professional reasons (he’s about to open a business in my country) When he came, he was a bit distracted, and after leaving sent me the breaking up message.
Got hit with the “I’m not in the right mindset atm to continue the relationship” Is that always an excuse, or I should believe his words?
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