Is he jealous?

I have been with my boyfriend for about 8 months now. I know how he reacts to me having a lot of guy friends & everything. But I figured if I introduced him to all my really close guys friends he would relaxx about them. After I did. He would still get mad when he see text messages from them, & sees me laughing & having a good time with them. when they all know I'm with him & he has met them. He tells me he is not jealous. He just doesn't like that I talk to them or that we aree close. But I don't know I think he might be jealous. What is his problem?
Is he jealous?
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