я написал ей

I wrote to her

→ я
phrase Uncommon #23,169
I wrote to her Can also mean “I messaged her” depending on context. The object is in the dative case: ей = to her.
RU: Я написал ей вчера вечером.
EN: I wrote to her last night.

Поскольку я не получил ответа, я написал ей ещё раз.

Since I didn’t get a response, I wrote to her again.

Я написал ей и сообщил о смерти её брата.

I wrote to her and told her about her brother's death.

— Жан Де Флоретт (1986)

Я написал ей на Фэйсбуке.

I wrote to her on Facebook.

Я написал ей вчера утром письмо.

I wrote her a letter yesterday morning.

Я написал ей и спросил почему.

I wrote to her and asked why.