Just watched S5:3. If you are going to use legal concepts as part of the plot, please take the time to check the law and make sure to use the appropriate law and language. On a marriage adjustment, the foreign national first becomes a lawful permanent resident, a "green card holder" not a citizen. Once the foreign national has a green card for three years and the couple is still living together, the foreign national can apply for naturalization to US citizen. Please don't become another source for misinformation.