Dating not looking for something too serious?

There’s this guy who wanted me for a while then got into a relationship and after we started talking again and someone had told me his girlfriend was cheating on him and everyone knew except him. so we went on a date yesterday And he told me that he likes me but he was in something serious so he doesn't want anything too serious.
From a guys point of view what does that mean?
Dating not looking for something too serious?
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