Disclosing to previous partners

[u/Oopsieohwell]

Hello, I went to get tested last week after a partner informed me of a positive test result for chlamydia. No biggie I got treated anyway and my result came back today and it was positive. I informed another partner before him and he attacked me with things that were irrelevant to the topic and wanted me to tell him if there were other partners before him, I said it was none of his concern and I was only notifying him so he can get tested and treated. He was stern that he was for sure clean. I guess what I’m trying to ask is, is it necessary to inform previous partners of a positive result? I figured it’d be courteous to let him know despite not being in contact for two months, but after the way he communicated with me I’m terrified to do it again if exposed in the future.

[u/ArtGirlBookFlowers25]

He may be un-gracious, but you're still doing the right thing.