Is my ex trying to get me jealous or is he over me?

I still have my ex on social media last night i seen he posted he went out with his group of friends. Which i know them all. He posted a pic with all of them including his two girl friends he literally took a pic next to them hugging them. when i saw it i’m not going to lie but i left some type of way but at the same time i feel i’m accepting it and getting over him little by little.
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Is my ex trying to get me jealous or is he over me?
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