replace (someone) in (someone's) affections

Translations
заменить (кого-то) в чувствах (кого-то)
After the breakup, she quickly replaced him in her affections.
После разрыва она быстро заменила его в своих чувствах.
Definitions
To take the place of another person in someone's feelings of love or fondness, often implying that the original person is no longer the object of affection.
Words
replace

verb
заменить
someone

pronoun
кого то
in

preposition
в
someone's

pronoun
чьи то
affections

noun
чувства