Why do people keep feeding other people the ‘I just got a lot going on right now, sorry?

Why not just be honest, I have no problem backing off, just say it. Don’t use a stupid line. One of the reasons why I do not like people in general. And another reasons why I keep my friend circle small and I hate meeting new guys.
Why do people keep feeding other people the ‘I just got a lot going on right now, sorry?
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