The ex-Home and Away beauty’s now fiancé broke the happy news via Instagram on Saturday night, sharing an emotional picture of himself on bended knee in an enchanted forest setting.
Pia herself also shared pictures of the happy moment, along with the caption:
‘In a hundred lifetimes, In a hundred worlds, In any version of reality - I’d find you & I’d choose you. Yes today Yes always,'
Pia, who is mother to Lennox, 10, with former husband, AFL star Brad Miller and Isiah Loyola, 14, from a previous relationship, revealed she was seeing Tyson shortly after they were spotted holding hands on Valentine’s Day in 2016.