tivesse me dito

had told me

→ ter
phrase Uncommon #18,612
had told me Used for a hypothetical or unreal past situation, often in a conditional sentence. It literally means “had told me,” with me as the object of dizer (to tell).
PO: Se você tivesse me dito antes, eu teria ajudado.
EN: If you had told me earlier, I would have helped.

Eu gostaria que você tivesse me dito antes.

I wish you had told me earlier.

Talvez se tivesse me dito que era bicha, tivesse sido mais fácil.

Maybe if you’d told me you were gay, it would have been easier.

— Perfeitos Desconhecidos (2016)

Se ele tivesse me dito a verdade, eu o teria perdoado.

If he had told me the truth, I would have forgiven him.

Eu não teria ido para a Austrália se Tom não tivesse me dito para ir.

I wouldn't have gone to Australia if Tom hadn't told me to go.

Pensei que você tivesse me dito que ia me comprar uma bebida.

I thought you told me you were going to buy me a drink.