Should I ignore him and never talk to him again or explain my feelings?

He stopped talking to me for 3 days after I didn’t answer his call and left me on read. Now he comes back and asks me what am I doing and why do I get lost. 😠 when he was the one. My friend who’s a psychologist told me his behavior is possessive, manipulative and jealous.
Should I ignore him and never talk to him again or explain my feelings?
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