What is the role of a spouse?
What are the rights of a spouse and who give those rights?
What are the benefits of a spouse?
Do all spouses have the same Roles, Rights and Benefits or are there confusions about these?
Did you as a spouse ever discuss your role, rights and benefits with your spouse or someone else?
What guarantees your rights?
The roles are defined by the couple, and usually are heavily influenced by their culture and society. In some places, there may also be legal definitions/requirements.
The rights are partly defined by law, partly by culture and tradition, and partly by the couple.
The benefits are partly defined by law (essentially the same as rights), but mostly by what each person is willing to give to the other, so that's completely arbitrary.
Aside from legally defined items, there is no uniformity, so there is often confusion, even when the couple negotiates their expectations.
We discussed our expectations and boundaries with each other before deciding to live together, and also before marrying.
Aside from the law and courts when petitioned, nothing guarantees our rights, but we each have the option of leaving and divorcing if our expectations are violated.