Does a five-year visa mean that I can stay in the United States for five years?
 -No. A visa only allows you to present yourself at a U.S. border or port of entry for inspection.
 The Immigrations Officer determines the amount of time you can stay in the United States once you have been granted entry.
 A five-year, multiple-entry visa means that you are allowed to travel to the United States as many times as you like during the five-year validity period, staying no longer than the time indicated by the Immigrations Officer.

I had a visa before. Do I automatically qualify for a renewal?
 -When your visa has expired and you wish to apply for another visa, please be prepared to demonstrate strong family, social, and economic ties to your country of residence at the time of your interview.
 Having been previously issued a visa does not guarantee that you will automatically qualify for another visa, i.e. there is no “renewal” or “renovation” of a non-immigrant visa to the United States.
 Just as each application for a visa is different, each time you apply for a visa you must satisfy the interviewing officer that you are entitled to the type of visa for which you are applying and that you will depart the United States at the end of your authorized temporary stay.

Does the U.S. recognize De Facto relationships?
 No, the U.S. does not recognize De Facto relationships, so to qualify as a spouse for a visa application you will need a legally recognized marriage certificate or family registry, as applicable.