This is actually a yin-yang combination of relationship. This is going to cause a lot of troubles and much worse, a divorce and break up indeed. Both in the relationship needs to understand that if someone works hard for them to grow and have a better life, it doesn't validate that the other partner can spend recklessly even if the significant other is saying that they're working hard for them. Many relationships are like but they teared off and fell apart because of how they think it's totally fine to spend in everything in as much as she/he wants to buy those unuseful things.