Ladies, advice

Will men get tired of constantly being questioned? I’ve been an insecure person forever. I’ve been with my significant other for almost 4 years. We have a son together. 1year old. He’s never given me a reason to doubt him and still I’ve always questioned him or ask him if he talks to other girls at work, or there’s times where he takes long to text me back during his breaks or lunches and I start to overthink or feel like maybe he’s hanging out with girls. Idk it sucks. I love him but he seems like he’s getting so tired of my distrust and insecurities. He’s always been such a good boyfriend and dad. I honestly feel like any girl would be lucky to have him. But I keep messing up and I’m so insecure. When I was young I would get bullied and then I would feel so ugly about myself. But after I had my son my insecurities got worse. It seems like my man is just tired of it and he’s given me plenty of chances to change and he doesn’t think anything is gonna change anymore but I don’t wanna lose him :( I don’t know what to do to convince him 😞 like I know he’s such a good person. He’s good to me he takes care of me and I took him for granted 😞