He said he loved me but he insulted me, hurt me emotionally, belittled me, hurt me physically/physically scary, etc?

My ex who broke up with me yesterday did this stuff, but not all the time. Only sometimes. When he was loving, caring and affectionate however, he was very loving and caring… I don’t understand/didn’t understand the behavior… there were times he even threatened me physically and yelled and disrespectful unkind towards me…

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