довериться(кому-либо: He knew he could confide in his parents. • If you tell someone a secret, and then they tell ten of their friends, you made a mistake by confiding in that person.В.И.Макаров)
открывать(someone); to confide [a secret/a mystery/one's secret desire/the truth/...] to someone – открывать [секрет/тайну/чьё-либо секретное желание/правду/...] кому-либо; I don't want to confide my plans to him. – Я не хочу открывать ему мои планы.; что-либо, кому-либо TarasZ)