Why is my sister's boy like talking angry with me?

  • My sister went no contact with him 2 weeks now and she said she did because he changed he started threatening her differently. I texted him hello and he texted back hello? Then I said i'm the sister and asked how he was he said good and you I said i'm glad to hear i'm good too then nothing came anymore but he seems angry too
Why is my sister's boy like talking angry with me?
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