Про это самое 1 сезон 5 серия — Серия 5

Mitya finds Polina's friend, Olya, an interesting person and goes on a date with her. Mitya offers to help Egor with family counseling, but along the way it turns out that Polina still loves Mitya and does not want to return to Egor. Mitya is faced with growing feelings for Polina.