Brother Jon, it is a stupid thing!
When a Guy gets engaged or Lav. it should be a happy time for both. I am Sure all of the Brothers Knew the Lady he is Betrothed to>
He will have enuff hell when he gets married so why make it worse?
Give them the small moment of glory be for hell starts!
We raze a bit and then go serenade the Lady at her house or dorm so all can see that there is true Love, YUK!