Is he trying to make me jealous?

So, I've been dating this guy for 6 months now. We are in an open relationship but last week he totally freaked out and admitted that he got jealous when he saw that I've been talking to 2 other guys on my phone. Yesterday, he started texting another girl in front of me, literally while I was laying on his chest. I didn't think much of it. Today, he calls me and asks me to meet up. When we met up, he was with the girl he was texting the other day. He introduced us to each other. He took a selfie with her and posted on his story. And then I made an excuse and left. I would like to think that he was trying to make me jealous since he was literally pissed off when he saw my texts and this is his way of "revenge". What do you think he is trying to do? Help a girl out <3
Is he trying to make me jealous?
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