What should I do if a guy left me due to misunderstandings?

He said me not to talk to his friends. But unfortunately one day we lost contacts with each other so his friends are the only way I can find his contact. I asked his friends for his contact. They tried to mislead me and told me that they would not like to see me and him together and that they are expecting me to break off with him. I refused and still finally got his contact. Before I got his contact, his friends spread all misinformation about me to him that I don't like him, etc. He was deeply hurt and decided not to pursue me anymore. I struggled for 2 years to go back to him. I successfully reached him after 2 years. He isn't ready to listen anything from me and made me unable to contact him.

There is no mutual friend to him who can be trusted and he decided himself to not listen to me anymore since he thought I don't love him and staying distant and isn't available for me to even tell him any truth that his friends are lying.

What should I do in this situation?

Leave him or fight for him and find his contact or ask some of my trusted friend to contact him and give him explanation?

What should I do if a guy left me due to misunderstandings?
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