о тебе думал

thought about you

→ о
phrase Rare #36,598
thought about you The phrase literally means “thought about you.” The form думал is past tense for a male speaker or subject; in the present tense, думал changes to думаю for “think about you.”
RU: Я вчера весь вечер о тебе думал.
EN: I thought about you all evening yesterday.

Я сегодня о тебе думал.

I was thinking about you today.

— Вожделение (2007)

В последний месяц я много о тебе думал.

I've been thinking about you a lot over the last month.

Я столько о тебе думал.

I thought about you so much.

Я весь день о тебе думал.

I thought about you all day.