To start, this isn't a huge deal, just something that I noticed that I would like to change/fix if possible. I recently got married (last October) and my wife's name still shows her last name in text/imessage threads. It is not this way under contacts. I can delete the thread entirely, find her contact, send a message from there, and as soon as it is sent it shows her maiden name. Is this an issue with how the iMessage server has her name saved?