How To Help Your Financially Irresponsible Partner
Identify the bad influences
As I mentioned before, financially irresponsible people are easy to influence. Your partner may have some friends or colleagues who influence him to eat at places he cannot afford or go on trips he cannot afford. If you notice that, and you feel comfortable talking to those people, privately mention that the two of you are trying to cut back and that it would help if they suggested more affordable restaurants.