The moment your parents call your fiancé a ‘contact person’ is a clear indication you should create better connection with your family. Unless it was a joke they made.
Ayah aku ada nickname baru ttg (tentang) kamu – My father has a new nickname for you [about you]
Bagaimana contact person kamu? – How‘s your contact person (doing)?
Kontak apa? – What (kind of) contact?