I told my ex boyfriend's new girlfriend that he has genital herpes and that she should get tested?

Anonymous
I broke up with my ex in Nov 2020 because he was two timing. He tried for 4 months to get me back and I was hesitant but we agreed to be friends. We had a good run and i feel like we were heading somewhere, although he would always try to have sex with me.
Nonetheless, I never gave in.. fast forward he came clean to me about his hsv2 diagnosis and said its the reason he committed to the new girl because he felt like he ruined her life and that she was a nice decent church girl and did not deserve that although he did not disclose to her. Unfortunately I found out his whole thing was fake and he was looking for sympathy and that they were very deep into a relationship. So I got mad that he lied and pretended to me and so I messaged her on fb to let her know that a. he lies , b. he cheats. c. she should get tested for hsv2. Funny thing is I didn't realise how much I would miss our friendship, anyways he threatened to sue me and insisted that i forget he ever existed, so i pushed him to block me and he blocked me on everything ( whatsapp, instagram and fb). I do however, miss our friendship and after i did this i realise i do not want him as a partner but i valued him more as a friend. Do you think I should call and apologise for what i have done, or that he will come back or he's gone for good?
I told my ex boyfriend's new girlfriend that he has genital herpes and that she should get tested?
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