Duffy is engaged. He accepted Mels proposal. But the trips to Ikea, dinner parties for couples and talk of babies are giving him itchy feet and now he s not sure if he can say goodbye to his extended adolescence and face up to that final walk down the aisle. How does he know if she`s The One? Can he cope with responsibility? Does he have what it takes to become Mr. Commitment? Because if he doesn`t, he may just find that he`s lost Mel -