Boyfriend problems

Novah
My boyfriend kinda gets jealous when I hang out with my guy friends but they're the only friends I have. And today I had my concert I was excited about and I really wanted my boyfriend to go, I looked all over the audience for him and I couldn't find him. After my concert I walked out and my best guy friend had showed up without me having to ask. My boyfriend never did. I want to tell him And let him know that even my friend showed up and  I'm sad and mad but idk how to tell him I'm feeling like this.