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Sometimes it takes a while for it to sink in that you're broken up and can't act the same way together anymore. It's possible he still has feelings for you, or he may just be unsure how to act at this point.
If this isn't what you want, putting some space between you for a bit would probably be the best thing to help you both move on.
If you still have feelings for him and think he might feel the same, try asking him again to clear things up for you. Saying one thing and doing another isn't going to get the two of you anywhere fast.1