Spanish Movie about best friend’s wedding

i’m looking for a movie. i can remember that it is about best friends, girl is married and boy is about to get married. girl has stepson and works in a company as a marketing associate. she doesn’t like her best friend’s fiancé and is planing to ruin the wedding, she is secretly in love with him. i can also remember that she meets strange men and she will do some kind of ritual. i think movie is spanish.