Spouse sees money and spends it

As I have been going through the new Money series, which is amazing, I have been able to observe many of the ways my spouse and I differ in regards to money. I have noticed he spends every dollar he can access, whether it is cash in hand, cash in our bank account or credit. I love him very much and realizing this hasn’t changed how I feel towards him. But we have always had joint money accounts and equal access. I don’t want to change him. I do want to ensure I can hold onto money in the future. I am not sure what to do.