Drugs and alcohol can greatly affect a relationship because many people depend on drugs and alcohol. This can have an effect on money and the happiness of the people in the relationship. This can cause a breakdown in the relationship and turn it toxic.
Money is a very important aspect of everyone's life, especially in a capitalist society. If a relationship is struggling to pay the bills, they often try to work more. This can cause a breakdown in communication, bad moods, and fatigue. Due to this, this can cause fighting and inevitably cause a breakdown in the relationship due to all of the stress.