How to deal with being in a physical and verbally abusive relationship when there is kids involved?

I had been physical abuse by my child father so many times from choking me to him slapping my body to the floor and I got fed up with it. So now we not living together but he wants to see his son but I'm afraid if I come around him with our son he would hurt me again and again.

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15 d
He also said he won't help me with our son unless he be around his son but everytime I around him he always physically abuse me somehow
How to deal with being in a physical and verbally abusive relationship when there is kids involved?
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