For once, it actually was the most dramatic finale ever! Bachelor Peter Weber, 28, dumped his final rose recipient and fiancée, Hannah Ann Sluss, and tentatively reconciled with his truelove, Madison Prewett. But the baby-faced pilot still looked miserable on March 10’s car-crash “After the Final Rose” special as his mother, Barb, worked to put the kibosh on his new romance. She eviscerated the 24-year-old for making the family wait three hours before meeting them in Australia, admitting she wasn’t in love with Peter and, Barb tells In Touch , not even bothering to talk to his brother, Jack. Days later, both Peter and Madi announced on their Instagram that they were over. In other words, Mom won. “Could I have acted more pleasant [toward her on the live show]?…