What should I do if he is waiting for me hopelessly and not moving on with another girl after I broke his heart but he disrespected me a lot in past?

So this guy disrespected me a lot when I friendzoned him and he called me as a characterless girl as I did not commit to him. But he never proposed me so I didn't commit to him. And he was jealous as I'm spending time with others a lot and not with him. I broke his heart with some very hard words since he called me as a characterless girl and since then he stopped talking with me and blocked me out of all his social medias. I regret being brutally speaking with him instead of understanding his feelings. His friend told me that he's still waiting for me to apologise with him so he will get back with me. But I am not willing to apologise to him since he called me as a characterless girl. I want to get back with him but I don't want to apologise to him. Should I go back to him and apologize to him now? I do not want to lose him
What should I do if he is waiting for me hopelessly and not moving on with another girl after I broke his heart but he disrespected me a lot in past?
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