Boundaries and respect?

So me and my ex broke up 3 months ago and I have asked for a second chance. He at first clearly told me no and now he has set a boundary with me telling me I can call him once a week after I asked if he just wants me to leave him alone. And he said it’s up to me…but like I said call once a week cause he isn’t going to forget how I treated him.
He always answers my calls but felt he couldn’t be himself in our relationship cause of how jealous and controlling I was. I have changed a lot these past 3 months and I’m not sure how I can prove myself or just simply show him. Do I call him once a week? Is respecting a boundary ok in this situation?
Boundaries and respect?
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