Dealing with insecure men

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I know y’all probably gon say leave him lol, but how do you deal with an insecure man? He knows that he’s insecure and he assured me that he’s working on it, but omg the shit is annoying af. Sometimes when I go out with my friends he’ll get mad and ignore my calls until the next day or even today for instance, I posted an old video of me rapping a friends song and tagged him for tbt and now he doesn’t want to talk because of that. He even followed the guy on ig 🙄. I understand he’s been cheated on and has some insecurities about the way he looks but good Lord don’t take that out on me. He’s such a good guy but sometimes I feel like I’m walking on eggshells because any little thing makes him insecure. How do you deal with it?