It's good to be mature and decide things like adults.
Carlos and Marnie are a married couple who disagree on how to use an inheritance.
Carlos wants to use the money to take a vacation.
Carlos sits Marnie down for a serious conversations about the money and explains his side and tries to understand hers.
Carlos goes behind Marnie's back and spends the money on plane tickets and a resort booking.
Carlos and Marnie agree to use some of the money for a smaller vacation with some left for what Marnie wants to do.
Marnie is angry at this breach of trust and decides to separate from Carlos.