чего ты ко мне

why are you … me?

→ что

phrase Rare #45,406

why are you … me? A colloquial sentence opening, usually followed by a verb describing someone’s actions toward the speaker. «Чего» here means “why” or “what for.”

RU: Чего ты ко мне придираешься?

EN: Why are you picking on me?

Чего ты ко мне пристал?

Why are you pestering me?

— 9th Company (2005)