Reba says that she met Brock while he was dating Lorianne and she was dating Parker Reynolds, but later in the show, she is in love with Terry Holloway, and leaves him to marry Brock, Terry's best friend whom she fell in love with.
In the previous episode, Barbara Jean has her hair dyed red and cut short to match Reba's, yet in this episode, her hair is long once again as if the haircut had never happened.
Reba and Brock explain that Reba dated Terry many years ago. Terry happened to be Brock's best friend, and eventually Reba and Brock got together instead, which broke Terry's heart. However, in season 1, Reba states that she was on a double blind date, and that's how she met Brock.