In other words does he want to be left alone?

I have been seeing a guy for almost 3 months now (it’s casual) we were seeing each other on a weekly basis up until two weeks ago when he experienced some person issues. A few days later I messaged him normal but then 1 week went by with no reply. Then I messaged asking if he is uncomfortable with me etc and he needs time to feel ok again. He replied the next day, sorry I have been busy with work. I worked last night now I need to get ready for work. Sorry again don’t mean nothing by it. Then said have a good weekend with a 😘 emoji What does he mean don’t mean nothing by it? Is he brushing me off?

In other words does he want to be left alone?
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