Start of the repair of the breakage: Zeir Anpin and Nukva grow to maturity together.
The start of the repair: Z"A and Nukva grow to maturity together. The three-stage cycle — pregnancy, suckling, maturity — begins.
Op. 119 opens the Building of Z"A unit (Op. 119–123) with the operational claim. Z"A and Nukva grow together — the parallel partnership operates from the cosmogonic beginning of their construction.
The repair of the breakage (Op. 36–58 named the breaking and the cosmogonic repair-arithmetic) is now operationalised at the Partzuf-construction level. Z"A and Nukva are built up — through pregnancy, suckling, maturity — and the building is the operational form of the repair.
Together: Z"A and Nukva grow simultaneously. Op. 53's gradual + simultaneous doctrine operates here at the parallel-partnership level. Z"A is not built first and then Nukva; both grow at every stage, with their operational coupling reflecting their parallel development.
The three-stage cycle (Coupling-Pregnancy-Birth-Suckling — Op. 66 named it; Op. 119 onward operationalises it for Z"A specifically) is the cosmic-operational architecture of the repair.