I understand that the woman's name comes before the man's name when they are a couple but do not have the same last name. What about when the man is a friend or family member of the bride or groom and the woman is his guest?
For instance, if John Smith is my friend and Jane Doe is his girlfriend, and they live at the same residence, which option should I use to address their invitation?
Option 1: Mr. John Smith and Ms. Jane Doe
Option 2: Ms. Jane Doe and Mr. John Smith