How to get him back?

I feel really bad since end of August I was complaining to my boyfriend how he doesn't have time for me and I suspected him cheating bc he follows many girls and likes their pictures. Sometimes he would answer in 24 hours and I was quiet about it but when I complained he said sorry but nothing changed. I must say I am overdramatic bc I have been in 2 relationships before him and I was cheated on and not treated right so it gave me trust isssues. He told me he gets tired of me and doing his work became comfortable. I said okay than goodbye for sometime but every day I call him and try text him bc I am not emotionally stable. How can I not text him? And how can I fix myself and all this mess?

How to get him back?
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