yes, you fumbled. You also got a pick 6 on the next drive, so there that one goes. The other 4 OM turnovers also contributed greatly to the scoreboard. Perhaps you don't realize how inept you were at stopping our offense as well (OM averaged 7 yards a play almost yesterday, very rarely do you lose when you do that, only punted once the entire game, etc), the turnovers were the defense.
Your offense- particularly the running game- played inspired football. Dixon and Relf (who played almost perfect) were motivated individuals. Our defense didn't match their intensity and where pushed around, no question. You made big, opportune plays in very timely moments. You pulled a big upset against your rival, but it's called upset for a reason.
You were not as good as OM this season, as common scores against Arkansas, LSU, Alabama, Vandy, Auburn demonstrate. That is the reason you are staying at home while OM is going to a NYD bowl game. A season is a body of work, this is the same message board that (rightly so) ridiculed OM making the "Ole Miss 31, National Champs 30" bumper stickers last year. The exact same issue is at work here. You lose your best defensive player, your best offensive player of all-time, and 6 other starters. You play in a place where you haven't won in over a decade and have lost by an average of 21 points a game. You won't have the revenge motivation, in fact you'll be facing it.
Yes, you will be the underdog. Substantially so, perhaps, if like this season you don't do much in your other 11 games.