If you'll recall, I recently got engaged.
One of the conversations Alissa and I had rather early on in our relationship was about last names, and how, at so many weddings, I objected to the concluding phrase, "I now present, for the first time ever, Mr. and Mrs. His-First-Name His-Last-Name." I objected because the woman, who often was my friend or relative - aka the reason I was attending the wedding - had been reduced to the name of "Mrs." I recall attending a wedding with my friend Jessie, and when the "Mr. and Mrs." pronouncement was made we both groaned to each other, "and there it is."
Alissa saw my point, but stated in no uncertain terms that if we got married, she'd want to take my last name and be introduced as "Mr. and Mrs. Last-Name." Her reason was to form a new identity as a couple, separate from her former life as an individual. Frantically I explained to her that if I did that at my own wedding, Jessie would never forgive me! She retorted, "who would you rather have upset at you, your friend Jessie or your wife?"
Fortunately, Alissa has since changed her opinion about taking my last name (she realized she actually likes her last name, and doesn't want to go through all the legal hassles of changing something she likes), and now plans on keeping her own, so I've managed to escape the trap! Jessie can be happy with me, as can Alissa.