According to AfterElton.com, his fiancé is Blue Hamilton, an L.A. musician who had reportedly been previously described as Matt's "bestie." Blue's official account @BlueJamesMusic, retweeted the message, writing, "'@themattdallas: Starting off the year with a new fiancé @BlueJamesMusic A great way to kick off 2013!' yo best mean me."
This is not only an engagement announcement but apparently a very quiet public coming out for Matt. Congrats to the happy couple!