It is difficult for one person in a couple to be a saver and the other to be a spender. Even though opposites attract this is usually one thing that can break up a marriage. That one thing is money. It is possible for one person to be a saver and the other to be a spender but the couple should come to an agreement early on in the relationship about how much money should be spent and how much money should be saved.
Therefore as long as everyone is sticking to the rules that were sent than everyone should be happy. Usually someone may spend more than what they said and they come up with an excuse of why they did that and that causes problems.