Simply because sometimes there partners only care for their money, they forget that they have a partner that needs some love and affections too. Sometimes we are blinded of the things that will make us happy for a short time. We didnt notice that we are hurting our wife.
We must understand that our wife stays at our side when we have nothing, so dont leave them when we have everything.
Money is just a thing , it will not give you true happiness. its better to spend your money to your family. They will not leave you until you dont have money.
Love your wife and family more than your money.